Google Online Security Blog: February 2013

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function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-K46T604G22'); </script> <link href='https://www.blogger.com/dyn-css/authorization.css?targetBlogID=1176949257541686127&zx=2fc786ea-c202-4743-8706-65c1d8b651e1' media='none' onload='if(media!='all')media='all'' rel='stylesheet'/><noscript><link href='https://www.blogger.com/dyn-css/authorization.css?targetBlogID=1176949257541686127&zx=2fc786ea-c202-4743-8706-65c1d8b651e1' rel='stylesheet'/></noscript> <meta name='google-adsense-platform-account' content='ca-host-pub-1556223355139109'/> <meta name='google-adsense-platform-domain' content='blogspot.com'/> </head> <body> <script type='text/javascript'> //<![CDATA[ var axel = Math.random() + ""; var a = axel * 10000000000000; document.write('<iframe src="https://2542116.fls.doubleclick.net/activityi;src=2542116;type=gblog;cat=googl0;ord=ord=' + a + '?" width="1" height="1" frameborder="0" style="display:none"></iframe>'); //]]> </script> <noscript> <img alt='' height='1' src='https://ad.doubleclick.net/ddm/activity/src=2542116;type=gblog;cat=googl0;ord=1?' width='1'/> </noscript>  <div class='header-outer'> <div class='header-inner'> <div class='section' id='header'><div class='widget Header' data-version='1' id='Header1'> <div class='header-left'> <div class='header-title'> <a class='google-logo' href='https://security.googleblog.com/'> <img height='50' src='https://www.gstatic.com/images/branding/googlelogo/2x/googlelogo_color_150x54dp.png'/> </a> <a href='/.'> <h2> Security Blog </h2> </a> </div> <div class='header-desc'> The latest news and insights from Google on security and safety on the Internet </div> </div> </div></div> </div> </div>  <div class='cols-wrapper loading'> <div class='col-main-wrapper'> <div class='col-main'> <div class='section' id='main'><div class='widget Blog' data-version='1' id='Blog1'> <div class='post' data-id='1800284671180637948' itemscope='' itemtype='http://schema.org/BlogPosting'> <h2 class='title' itemprop='name'> <a href='https://security.googleblog.com/2013/02/an-update-on-our-war-against-account.html' itemprop='url' title='An update on our war against account hijackers '> An update on our war against account hijackers </a> </h2> <div class='post-header'> <div class='published'> <span class='publishdate' itemprop='datePublished'> February 19, 2013 </span> </div> </div> <div class='post-body'> <div class='post-content' itemprop='articleBody'> <script type='text/template'> <span class="byline-author">Posted by Mike Hearn, Google Security Engineer </span><br /> <br /> <span class="byline-author"></span>Have you ever gotten a plea to wire money to a friend stranded at an international airport? An oddly written message from someone you haven’t heard from in ages? Compared to five years ago, more scams, illegal, fraudulent or spammy messages today come from someone you know. Although spam filters have become very powerful—in Gmail, less than 1 percent of spam emails make it into an inbox—these unwanted messages are much more likely to make it through if they come from someone you’ve been in contact with before. As a result, in 2010 spammers started changing their tactics—and we saw a large increase in fraudulent mail sent from Google Accounts. In turn, our security team has developed new ways to keep you safe, and dramatically reduced the amount of these messages.<br /> <br /> <b>Spammers’ new trick—hijacking accounts </b><br /> To improve their chances of beating a spam filter by sending you spam from your contact’s account, the spammer first has to break into that account. This means many spammers are turning into account thieves. Every day, cyber criminals break into websites to steal databases of usernames and passwords—the online “keys” to accounts. They put the databases up for sale on the black market, or use them for their own nefarious purposes. Because many people re-use the same password across different accounts, stolen passwords from one site are often valid on others.<br /> <br /> With stolen passwords in hand, attackers attempt to break into accounts across the web and across many different services. We’ve seen a single attacker using stolen passwords to attempt to break into a million different Google accounts every single day, for weeks at a time. A different gang attempted sign-ins at a rate of more than 100 accounts per second. Other services are often more vulnerable to this type of attack, but when someone tries to log into your Google Account, our security system does more than just check that a password is correct. <br /> <br /> <div class="separator" style="clear: both; text-align: center;"> <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj-pzKIX1ueT2eWCbmRfrkUa9sUr24Z5LNUmgT3ABIH0UbY2KN-prwsIwEkPDWoXs05yWhF2k_uFzHZpyKi-9b1-MPi3MG4o8ccxz4OzzrXi7-8-O4C6owonR8gSOrAPU0X2bltkjBd3zo/s1600/Blogpost+graph-1.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj-pzKIX1ueT2eWCbmRfrkUa9sUr24Z5LNUmgT3ABIH0UbY2KN-prwsIwEkPDWoXs05yWhF2k_uFzHZpyKi-9b1-MPi3MG4o8ccxz4OzzrXi7-8-O4C6owonR8gSOrAPU0X2bltkjBd3zo/s500/Blogpost+graph-1.png" width="500" /></a></div> <div style="text-align: center;"> <span style="text-align: start;"><i>Legitimate accounts blocked for sending spam: </i></span><i>Our security systems have dramatically reduced the number of Google Accounts used to send spam over the past few years</i><br /> <i><br /> </i></div> <b>How Google Security helps protect your account</b><br /> Every time you sign in to Google, whether via your web browser once a month or an email program that checks for new mail every five minutes, our system performs a complex risk analysis to determine how likely it is that the sign-in really comes from you. In fact, there are more than 120 variables that can factor into how a decision is made.<br /> <br /> If a sign-in is deemed suspicious or risky for some reason—maybe it’s coming from a country oceans away from your last sign-in—we ask some simple questions about your account. For example, we may ask for the phone number associated with your account, or for the answer to your security question. These questions are normally hard for a hijacker to solve, but are easy for the real owner. Using security measures like these, we've dramatically reduced the number of compromised accounts by 99.7 percent since the peak of these hijacking attempts in 2011. <br /> <br /> <div class="separator" style="clear: both; text-align: center;"> <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgxJWexdKz0ECgPYfBeu7T9oTiFWHSCIGBk76AwwCjUVLtuMUveyprboAhl4vy5JbN4dumnNLlGzxO5bVyJjrxDp5vElpUcgWrgrlsHvjzAlPU9Dw5ahOsSfobqTiMqN8RUwpGlhsJFOv8/s1600/Untitled-3.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgxJWexdKz0ECgPYfBeu7T9oTiFWHSCIGBk76AwwCjUVLtuMUveyprboAhl4vy5JbN4dumnNLlGzxO5bVyJjrxDp5vElpUcgWrgrlsHvjzAlPU9Dw5ahOsSfobqTiMqN8RUwpGlhsJFOv8/s500/Untitled-3.png" width="500" /></a></div> <div class="separator" style="clear: both; text-align: center;"> <br /></div> <b>Help protect your account</b><br /> While we do our best to keep spammers at bay, you can help protect your account by making sure you’re using a <a href="//www.google.com/goodtoknow/online-safety/passwords/">strong, unique password</a> for your Google Account, upgrading your account to <a href="//www.google.com/landing/2step/">use 2-step verification</a>, and <a href="https://accounts.google.com/UpdateAccountRecoveryOptions?hl=en&service=oz">updating the recovery options</a> on your account such as your secondary email address and your phone number. Following these three steps can help prevent your account from being hijacked—this means less spam for your friends and contacts, and improved security and privacy for you.<br /> <br /> (Cross-posted from the Official Google Blog) <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </script> <noscript> <span class="byline-author">Posted by Mike Hearn, Google Security Engineer </span><br /> <br /> <span class="byline-author"></span>Have you ever gotten a plea to wire money to a friend stranded at an international airport? An oddly written message from someone you haven’t heard from in ages? Compared to five years ago, more scams, illegal, fraudulent or spammy messages today come from someone you know. Although spam filters have become very powerful—in Gmail, less than 1 percent of spam emails make it into an inbox—these unwanted messages are much more likely to make it through if they come from someone you’ve been in contact with before. As a result, in 2010 spammers started changing their tactics—and we saw a large increase in fraudulent mail sent from Google Accounts. In turn, our security team has developed new ways to keep you safe, and dramatically reduced the amount of these messages.<br /> <br /> <b>Spammers’ new trick—hijacking accounts </b><br /> To improve their chances of beating a spam filter by sending you spam from your contact’s account, the spammer first has to break into that account. This means many spammers are turning into account thieves. Every day, cyber criminals break into websites to steal databases of usernames and passwords—the online “keys” to accounts. They put the databases up for sale on the black market, or use them for their own nefarious purposes. Because many people re-use the same password across different accounts, stolen passwords from one site are often valid on others.<br /> <br /> With stolen passwords in hand, attackers attempt to break into accounts across the web and across many different services. We’ve seen a single attacker using stolen passwords to attempt to break into a million different Google accounts every single day, for weeks at a time. A different gang attempted sign-ins at a rate of more than 100 accounts per second. Other services are often more vulnerable to this type of attack, but when someone tries to log into your Google Account, our security system does more than just check that a password is correct. <br /> <br /> <div class="separator" style="clear: both; text-align: center;"> <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj-pzKIX1ueT2eWCbmRfrkUa9sUr24Z5LNUmgT3ABIH0UbY2KN-prwsIwEkPDWoXs05yWhF2k_uFzHZpyKi-9b1-MPi3MG4o8ccxz4OzzrXi7-8-O4C6owonR8gSOrAPU0X2bltkjBd3zo/s1600/Blogpost+graph-1.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj-pzKIX1ueT2eWCbmRfrkUa9sUr24Z5LNUmgT3ABIH0UbY2KN-prwsIwEkPDWoXs05yWhF2k_uFzHZpyKi-9b1-MPi3MG4o8ccxz4OzzrXi7-8-O4C6owonR8gSOrAPU0X2bltkjBd3zo/s500/Blogpost+graph-1.png" width="500" /></a></div> <div style="text-align: center;"> <span style="text-align: start;"><i>Legitimate accounts blocked for sending spam: </i></span><i>Our security systems have dramatically reduced the number of Google Accounts used to send spam over the past few years</i><br /> <i><br /> </i></div> <b>How Google Security helps protect your account</b><br /> Every time you sign in to Google, whether via your web browser once a month or an email program that checks for new mail every five minutes, our system performs a complex risk analysis to determine how likely it is that the sign-in really comes from you. In fact, there are more than 120 variables that can factor into how a decision is made.<br /> <br /> If a sign-in is deemed suspicious or risky for some reason—maybe it’s coming from a country oceans away from your last sign-in—we ask some simple questions about your account. For example, we may ask for the phone number associated with your account, or for the answer to your security question. These questions are normally hard for a hijacker to solve, but are easy for the real owner. Using security measures like these, we've dramatically reduced the number of compromised accounts by 99.7 percent since the peak of these hijacking attempts in 2011. <br /> <br /> <div class="separator" style="clear: both; text-align: center;"> <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgxJWexdKz0ECgPYfBeu7T9oTiFWHSCIGBk76AwwCjUVLtuMUveyprboAhl4vy5JbN4dumnNLlGzxO5bVyJjrxDp5vElpUcgWrgrlsHvjzAlPU9Dw5ahOsSfobqTiMqN8RUwpGlhsJFOv8/s1600/Untitled-3.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgxJWexdKz0ECgPYfBeu7T9oTiFWHSCIGBk76AwwCjUVLtuMUveyprboAhl4vy5JbN4dumnNLlGzxO5bVyJjrxDp5vElpUcgWrgrlsHvjzAlPU9Dw5ahOsSfobqTiMqN8RUwpGlhsJFOv8/s500/Untitled-3.png" width="500" /></a></div> <div class="separator" style="clear: both; text-align: center;"> <br /></div> <b>Help protect your account</b><br /> While we do our best to keep spammers at bay, you can help protect your account by making sure you’re using a <a href="//www.google.com/goodtoknow/online-safety/passwords/">strong, unique password</a> for your Google Account, upgrading your account to <a href="//www.google.com/landing/2step/">use 2-step verification</a>, and <a href="https://accounts.google.com/UpdateAccountRecoveryOptions?hl=en&service=oz">updating the recovery options</a> on your account such as your secondary email address and your phone number. Following these three steps can help prevent your account from being hijacked—this means less spam for your friends and contacts, and improved security and privacy for you.<br /> <br /> (Cross-posted from the Official Google Blog) <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </noscript> </div> </div> <div class='share'> <span class='twitter-custom social-wrapper' data-href='http://twitter.com/share?text=Google Online Security Blog:An update on our war against account hijackers &url=https://security.googleblog.com/2013/02/an-update-on-our-war-against-account.html&via=google'> <img alt='Share on Twitter' height='24' src='https://www.gstatic.com/images/icons/material/system/2x/post_twitter_black_24dp.png' width='24'/> </span> <span class='fb-custom social-wrapper' 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href='https://security.googleblog.com/2018/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2018/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2018/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://security.googleblog.com/2017/'> 2017 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2017/12/'> Dec </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2017/11/'> Nov </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2017/10/'> Oct </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2017/09/'> Sep </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2017/07/'> Jul </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2017/06/'> Jun </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2017/05/'> May </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2017/04/'> Apr </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2017/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2017/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2017/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://security.googleblog.com/2016/'> 2016 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2016/12/'> Dec </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2016/11/'> Nov </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2016/10/'> Oct </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2016/09/'> Sep </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2016/08/'> Aug </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2016/07/'> Jul </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2016/06/'> Jun </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2016/05/'> May </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2016/04/'> Apr </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2016/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2016/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2016/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://security.googleblog.com/2015/'> 2015 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2015/12/'> Dec </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2015/11/'> Nov </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2015/10/'> Oct </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2015/09/'> Sep </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2015/08/'> Aug </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2015/07/'> Jul </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2015/06/'> Jun </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2015/05/'> May </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2015/04/'> Apr </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2015/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2015/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2015/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://security.googleblog.com/2014/'> 2014 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2014/12/'> Dec </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2014/11/'> Nov </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2014/10/'> Oct </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2014/09/'> Sep </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2014/08/'> Aug </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2014/07/'> Jul </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2014/06/'> Jun </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2014/04/'> Apr </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2014/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2014/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2014/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate expanded'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy toggle-open'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://security.googleblog.com/2013/'> 2013 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2013/12/'> Dec </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2013/11/'> Nov </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2013/10/'> Oct </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2013/08/'> Aug </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2013/06/'> Jun </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2013/05/'> May </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2013/04/'> Apr </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2013/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate expanded'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2013/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2013/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://security.googleblog.com/2012/'> 2012 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2012/12/'> Dec </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2012/09/'> Sep </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2012/08/'> Aug </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2012/06/'> Jun </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2012/05/'> May </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2012/04/'> Apr </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2012/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2012/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2012/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://security.googleblog.com/2011/'> 2011 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2011/12/'> Dec </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2011/11/'> Nov </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2011/10/'> Oct </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2011/09/'> Sep </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2011/08/'> Aug </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2011/07/'> Jul </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2011/06/'> Jun </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2011/05/'> May </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2011/04/'> Apr </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2011/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2011/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://security.googleblog.com/2010/'> 2010 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2010/11/'> Nov </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2010/10/'> Oct </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2010/09/'> Sep </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2010/08/'> Aug </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2010/07/'> Jul </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2010/05/'> May </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2010/04/'> Apr </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2010/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://security.googleblog.com/2009/'> 2009 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2009/11/'> Nov </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2009/10/'> Oct </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2009/08/'> Aug </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2009/07/'> Jul </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2009/06/'> Jun </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a 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class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2008/10/'> Oct </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2008/08/'> Aug </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2008/07/'> Jul </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2008/05/'> May </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2008/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://security.googleblog.com/2007/'> 2007 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2007/11/'> Nov </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://security.googleblog.com/2007/10/'> Oct </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' 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style='margin-top: -16px;' width='92'/> </a> <ul> <li> <a href='//www.google.com/'> Google </a> </li> <li> <a href='//www.google.com/policies/privacy/'> Privacy </a> </li> <li> <a href='//www.google.com/policies/terms/'> Terms </a> </li> </ul> </div> </div> <script type='text/javascript'> //<![CDATA[ // Social sharing popups. var postEl = document.getElementsByClassName('social-wrapper'); var postCount = postEl.length; for(i=0; i<postCount;i++){ postEl[i].addEventListener("click", function(event){ var postUrl = this.getAttribute("data-href"); window.open( postUrl,'popUpWindow','height=500,width=500,left=10,top=10,resizable=yes,scrollbars=yes,toolbar=yes,menubar=no,location=no,directories=no,status=yes'); });} //]]> </script> <script type='text/javascript'> //<![CDATA[ var BreakpointHandler = function() { this.initted = false; this.isHomePage = false; this.isMobile = false; }; BreakpointHandler.prototype.finalizeSummary = function(summaryHtml, lastNode) { // Use $.trim for IE8 compatibility summaryHtml = $.trim(summaryHtml).replace(/(<br>|\s)+$/,''); if (lastNode.nodeType == 3) { var lastChar = summaryHtml.slice(-1); if (!lastChar.match(/[.”"?]/)) { if (!lastChar.match(/[A-Za-z]/)) { summaryHtml = summaryHtml.slice(0, -1); } summaryHtml += ' ...'; } } else if (lastNode.nodeType == 1 && (lastNode.nodeName == 'I' || lastNode.nodeName == 'A')) { summaryHtml += ' ...'; } return summaryHtml; }; BreakpointHandler.prototype.generateSummaryFromContent = function(content, numWords) { var seenWords = 0; var summaryHtml = ''; for (var i=0; i < content.childNodes.length; i++) { var node = content.childNodes[i]; var nodeText; if (node.nodeType == 1) { if (node.hasAttribute('data-about-pullquote')) { continue; } nodeText = node.textContent; if (nodeText === undefined) { // innerText for IE8 nodeText = node.innerText; } if (node.nodeName == 'DIV' || node.nodeName == 'B') { // Don't end early if we haven't seen enough words. if (seenWords < 10) { continue; } if (i > 0) { summaryHtml = this.finalizeSummary(summaryHtml, content.childNodes[i-1]); } break; } summaryHtml += node.outerHTML; } else if (node.nodeType == 3) { nodeText = node.nodeValue; summaryHtml += nodeText + ' '; } var words = nodeText.match(/\S+\s*/g); if (!words) { continue; } var remain = numWords - seenWords; if (words.length >= remain) { summaryHtml = this.finalizeSummary(summaryHtml, node); break; } seenWords += words.length; } return summaryHtml; }; BreakpointHandler.prototype.detect = function() { var match, pl = /\+/g, search = /([^&=]+)=?([^&]*)/g, decode = function (s) { return decodeURIComponent(s.replace(pl, " ")); }, query = window.location.search.substring(1); var urlParams = {}; while (match = search.exec(query)) urlParams[decode(match[1])] = decode(match[2]); this.isListPage = $('html').hasClass('list-page'); this.isMobile = urlParams['m'] === '1'; this.isHomePage = window.location.pathname == '/'; }; BreakpointHandler.prototype.initContent = function() { var self = this; $('.post').each(function(index) { var body = $(this).children('.post-body')[0]; var content = $(body).children('.post-content')[0]; $(content).addClass('post-original'); var data = $(content).children('script').html(); data = self.rewriteForSSL(data); if (document.body.className.indexOf('is-preview') !== -1) { // If exists, extract specified editor's preview. var match = data.match(/([\s\S]+?)<div data-is-preview.+?>([\s\S]+)<\/div>/m); if (match) { data = match[1]; } } // Prevent big images from loading when they aren't needed. // This must be done as a pre-injection step, since image loading can't be // canceled once embedded into the DOM. if (self.isListPage && self.isMobile) { data = data.replace(/<(img|iframe) .+?>/g, ''); } // Insert template to be rendered as nodes. content.innerHTML = data; if (self.isListPage) { var summary = document.createElement('div'); $(summary).addClass('post-content'); $(summary).addClass('post-summary'); body.insertBefore(summary, content); if (match) 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Google Online Security Blog: February 2013