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Available in 4 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-4" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">4 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/SIGAINT" title="SIGAINT – Catalan" lang="ca" hreflang="ca" data-title="SIGAINT" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/SIGAINT" title="SIGAINT – Spanish" lang="es" hreflang="es" data-title="SIGAINT" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/SIGAINT" title="SIGAINT – Portuguese" lang="pt" hreflang="pt" data-title="SIGAINT" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/SIGAINT" title="SIGAINT – Chinese" lang="zh" hreflang="zh" data-title="SIGAINT" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q25036153#sitelinks-wikipedia" title="Edit 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</div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Appearance</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to 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screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox vcard"><caption class="infobox-title fn org">SIGAINT</caption><tbody><tr><td colspan="2" class="infobox-image"><span typeof="mw:File"><a href="/wiki/File:Logo_of_SIGAINT.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/en/8/81/Logo_of_SIGAINT.png" decoding="async" width="156" height="151" class="mw-file-element" data-file-width="156" data-file-height="151" /></a></span></td></tr><tr><th scope="row" class="infobox-label"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;">Type of site</div></th><td class="infobox-data"><a href="/wiki/Webmail" title="Webmail">Webmail</a>, E-Mail service</td></tr><tr><th scope="row" class="infobox-label">Available in</th><td class="infobox-data"><a href="/wiki/English_Language" class="mw-redirect" title="English Language"> English </a></td></tr><tr><th scope="row" class="infobox-label">URL</th><td class="infobox-data url">sigaint.org, sigaintevyh2rzvw.onion (defunct)<sup id="cite_ref-deepdotweb_1-0" class="reference"><a href="#cite_note-deepdotweb-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Commercial</th><td class="infobox-data">No</td></tr><tr><th scope="row" class="infobox-label">Registration</th><td class="infobox-data">Required</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Registered_user" title="Registered user">Users</a></th><td class="infobox-data">about 370,000<sup id="cite_ref-tortalk_2-0" class="reference"><a href="#cite_note-tortalk-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Current status</th><td class="infobox-data category">Offline</td></tr></tbody></table> <p><b>SIGAINT</b> was a <a href="/wiki/Tor_(anonymity_network)#Hidden_services" class="mw-redirect" title="Tor (anonymity network)">Tor hidden service</a> offering secure <a href="/wiki/Email" title="Email">email</a> services. According to its FAQ page, its web interface used <a href="/wiki/SquirrelMail" title="SquirrelMail">SquirrelMail</a> which does not rely on <a href="/wiki/JavaScript" title="JavaScript">JavaScript</a>. Passwords couldn't be recovered. Users received two addresses per inbox: one at sigaint.org for receiving <a href="/wiki/Clearnet_(networking)" title="Clearnet (networking)">clearnet</a> emails and the other at its <a href="/wiki/.onion" title=".onion">.onion</a> address only for receiving emails sent from other Tor-enabled email services. Free accounts had 50 MB of storage space and expired after one year of inactivity. Upgraded accounts had access to <a href="/wiki/POP3" class="mw-redirect" title="POP3">POP3</a>, <a href="/wiki/IMAP" class="mw-redirect" title="IMAP">IMAP</a>, <a href="/wiki/SMTP" class="mw-redirect" title="SMTP">SMTP</a>, larger size limits, <a href="/wiki/Disk_encryption#Full_disk_encryption" title="Disk encryption">full disk encryption</a>, and never expired. </p><p>The service was recommended by various security specialists as a highly secure email service.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-deepdotweb_1-1" class="reference"><a href="#cite_note-deepdotweb-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>In April 2015, a number of user accounts were compromised in what was speculated at the time to be a government-sponsored <a href="/wiki/De-anonymization" class="mw-redirect" title="De-anonymization">de-anonymization</a> attack from 70 different exit nodes.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> A SIGAINT administrator said that the hidden service was not hacked but malicious exit nodes had modified their clearnet page so that its link to the hidden service pointed to an imposter hidden service, effectively tricking users with a <a href="/wiki/Phishing" title="Phishing">phishing</a> attack that harvested login credentials.<sup id="cite_ref-tortalk_2-1" class="reference"><a href="#cite_note-tortalk-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> SIGAINT has since added SSL to their gateway to protect against such attacks.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p><p>The service is currently down. Both its ".org" website and its onion link return error code 500.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=SIGAINT&action=edit&section=1" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Comparison_of_webmail_providers" title="Comparison of webmail providers">Comparison of webmail providers</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=SIGAINT&action=edit&section=2" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-deepdotweb-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-deepdotweb_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-deepdotweb_1-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://archive.today/20150323092534/http://www.deepdotweb.com/2015/02/16/interview-sigaint-darknet-email-admin/">"Interview With "Sigaint DarkNet Email" Admin"</a>. <i><a href="/wiki/DeepDotWeb" title="DeepDotWeb">DeepDotWeb</a></i>. 2015-02-16. Archived from <a rel="nofollow" class="external text" href="https://www.deepdotweb.com/2015/02/16/interview-sigaint-darknet-email-admin/">the original</a> on 2015-03-23.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=DeepDotWeb&rft.atitle=Interview+With+%22Sigaint+DarkNet+Email%22+Admin&rft.date=2015-02-16&rft_id=https%3A%2F%2Fwww.deepdotweb.com%2F2015%2F02%2F16%2Finterview-sigaint-darknet-email-admin%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASIGAINT" class="Z3988"></span></span> </li> <li id="cite_note-tortalk-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-tortalk_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-tortalk_2-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSIGAINT_Admin2015" class="citation web cs1">SIGAINT Admin (23 April 2015). <a rel="nofollow" class="external text" href="https://lists.torproject.org/pipermail/tor-talk/2015-April/037549.html">"SIGAINT email service targeted by 70 bad exit nodes"</a>. <i>tor-talk</i>. Tor Project. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20160304012144/https://lists.torproject.org/pipermail/tor-talk/2015-April/037549.html">Archived</a> from the original on 2016-03-04<span class="reference-accessdate">. Retrieved <span class="nowrap">2016-08-31</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=tor-talk&rft.atitle=SIGAINT+email+service+targeted+by+70+bad+exit+nodes&rft.date=2015-04-23&rft.au=SIGAINT+Admin&rft_id=https%3A%2F%2Flists.torproject.org%2Fpipermail%2Ftor-talk%2F2015-April%2F037549.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASIGAINT" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFPauli2016" class="citation news cs1">Pauli, Darren (4 May 2016). <a rel="nofollow" class="external text" href="https://www.theregister.co.uk/2016/05/04/opsec_guide_for_hacks_now_terrorist_fodder/">"How to evade the NSA: OpSec guide for journalists also used by terrorists"</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20160531114016/http://www.theregister.co.uk/2016/05/04/opsec_guide_for_hacks_now_terrorist_fodder">Archived</a> from the original on 31 May 2016<span class="reference-accessdate">. Retrieved <span class="nowrap">26 May</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=How+to+evade+the+NSA%3A+OpSec+guide+for+journalists+also+used+by+terrorists&rft.date=2016-05-04&rft.aulast=Pauli&rft.aufirst=Darren&rft_id=https%3A%2F%2Fwww.theregister.co.uk%2F2016%2F05%2F04%2Fopsec_guide_for_hacks_now_terrorist_fodder%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASIGAINT" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFMaria2016" class="citation news cs1">Maria, Korolov (13 May 2016). <a rel="nofollow" class="external text" href="http://www.csoonline.com/article/3069977/cyber-attacks-espionage/terrorists-opt-for-consumer-tools.html">"Terrorists opt for consumer tools"</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20161014021123/http://www.csoonline.com/article/3069977/cyber-attacks-espionage/terrorists-opt-for-consumer-tools.html">Archived</a> from the original on 14 October 2016<span class="reference-accessdate">. Retrieved <span class="nowrap">26 May</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Terrorists+opt+for+consumer+tools&rft.date=2016-05-13&rft.aulast=Maria&rft.aufirst=Korolov&rft_id=http%3A%2F%2Fwww.csoonline.com%2Farticle%2F3069977%2Fcyber-attacks-espionage%2Fterrorists-opt-for-consumer-tools.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASIGAINT" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFPaganini2015" class="citation news cs1">Paganini, Pierluigi (26 April 2015). <a rel="nofollow" class="external text" href="http://securityaffairs.co/wordpress/36292/hacking/sigaint-hacked-by-intelligence.html">"Dark Web Email Service SIGAINT hacked by the Intelligence"</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20160910020716/http://securityaffairs.co/wordpress/36292/hacking/sigaint-hacked-by-intelligence.html">Archived</a> from the original on 10 September 2016<span class="reference-accessdate">. Retrieved <span class="nowrap">26 May</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Dark+Web+Email+Service+SIGAINT+hacked+by+the+Intelligence&rft.date=2015-04-26&rft.aulast=Paganini&rft.aufirst=Pierluigi&rft_id=http%3A%2F%2Fsecurityaffairs.co%2Fwordpress%2F36292%2Fhacking%2Fsigaint-hacked-by-intelligence.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASIGAINT" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFranceschi-Bicchierai2015" class="citation news cs1">Franceschi-Bicchierai, Lorenzo (24 April 2015). <a rel="nofollow" class="external text" href="https://motherboard.vice.com/en_uk/read/after-hacks-a-dark-web-email-provider-says-a-government-spied-on-its-users">"After Hacks, A Dark Web Email Provider Says a Government Spied on Its Users"</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20161021141941/http://motherboard.vice.com/en_uk/read/after-hacks-a-dark-web-email-provider-says-a-government-spied-on-its-users">Archived</a> from the original on 21 October 2016<span class="reference-accessdate">. Retrieved <span class="nowrap">25 September</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=After+Hacks%2C+A+Dark+Web+Email+Provider+Says+a+Government+Spied+on+Its+Users&rft.date=2015-04-24&rft.aulast=Franceschi-Bicchierai&rft.aufirst=Lorenzo&rft_id=https%3A%2F%2Fmotherboard.vice.com%2Fen_uk%2Fread%2Fafter-hacks-a-dark-web-email-provider-says-a-government-spied-on-its-users&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASIGAINT" class="Z3988"></span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSIGAINT" class="citation web cs1">SIGAINT. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20160927165758/https://www.sigaint.org/incidents.html">"SIGAINT Incidents Report"</a>. Archived from <a rel="nofollow" class="external text" href="https://www.sigaint.org/incidents.html">the original</a> on 27 September 2016<span class="reference-accessdate">. Retrieved <span class="nowrap">25 September</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=SIGAINT+Incidents+Report&rft.au=SIGAINT&rft_id=https%3A%2F%2Fwww.sigaint.org%2Fincidents.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASIGAINT" class="Z3988"></span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLeyden" class="citation web cs1">Leyden, John. <a rel="nofollow" class="external text" href="https://www.theregister.co.uk/2017/03/02/sigaint_goes_dark/">"Dark net webmail provider Sigaint still in the, er, dark"</a>. <i><a href="/wiki/The_Register" title="The Register">The Register</a></i>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20170718134114/http://www.theregister.co.uk/2017/03/02/sigaint_goes_dark/">Archived</a> from the original on 18 July 2017<span class="reference-accessdate">. Retrieved <span class="nowrap">6 March</span> 2017</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=The+Register&rft.atitle=Dark+net+webmail+provider+Sigaint+still+in+the%2C+er%2C+dark&rft.aulast=Leyden&rft.aufirst=John&rft_id=https%3A%2F%2Fwww.theregister.co.uk%2F2017%2F03%2F02%2Fsigaint_goes_dark%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASIGAINT" class="Z3988"></span></span> </li> </ol></div></div> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist 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a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Tor_onion_services" title="Template:Tor onion services"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Tor_onion_services" title="Template talk:Tor onion services"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a 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onion services">List</a></li> <li><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Category:Tor_onion_services" title="Category:Tor onion services">Category</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Search_engine" title="Search engine">Search engines</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ahmia" title="Ahmia">Ahmia</a></li> <li><a href="/wiki/Brave_Search" title="Brave Search">Brave Search</a>*</li> <li><a href="/wiki/DuckDuckGo" title="DuckDuckGo">DuckDuckGo</a>*</li> <li><i><a href="/wiki/Cliqz" title="Cliqz">Cliqz</a>*</i></li> <li><i><a href="/wiki/Grams_(search)" title="Grams (search)">Grams</a></i></li> <li><a href="/wiki/MetaGer" title="MetaGer">MetaGer</a>*</li> <li><i><a href="/wiki/Searx" title="Searx">Searx</a>*</i></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/News" title="News">News</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/BBC_News" title="BBC News">BBC News</a>*</li> <li><a href="/wiki/Bellingcat" title="Bellingcat">Bellingcat</a>*</li> <li><a href="/wiki/Current_Time_TV" title="Current Time TV">Current Time TV</a>*</li> <li><a href="/wiki/Die_Tageszeitung" title="Die Tageszeitung">Die Tageszeitung</a>*</li> <li><a href="/wiki/Deutsche_Welle" title="Deutsche Welle">Deutsche Welle</a>*</li> <li><a href="/wiki/The_Daily_Stormer" title="The Daily Stormer">The Daily Stormer</a>*</li> <li><i><a href="/wiki/Darknetlive" title="Darknetlive">Darknetlive</a></i></li> <li><i><a href="/wiki/DeepDotWeb" title="DeepDotWeb">DeepDotWeb</a></i></li> <li><a href="/wiki/ProPublica" title="ProPublica">ProPublica</a>*</li> <li><a href="/wiki/Radio_Free_Asia" title="Radio Free Asia">Radio Free Asia</a>*</li> <li><a href="/wiki/Radio_Free_Europe/Radio_Liberty" title="Radio Free Europe/Radio Liberty">Radio Free Europe/Radio Liberty</a>*</li> <li><a href="/wiki/The_Guardian" title="The Guardian">The Guardian</a>*</li> <li><a href="/wiki/Indymedia" title="Indymedia">Independent Media Center</a>*</li> <li><a href="/wiki/The_Intercept" title="The Intercept">The Intercept</a>*</li> <li><a href="/wiki/The_New_York_Times" title="The New York Times">The New York Times</a>*</li> <li><a href="/wiki/ProPublica" title="ProPublica">ProPublica</a>*</li> <li><a href="/wiki/Voice_of_America" title="Voice of America">Voice of America</a>*</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/File_system" title="File system">File storage</a> and <a href="/wiki/Peer-to-peer" title="Peer-to-peer">peer-to-peer</a><br /><a href="/wiki/File_sharing" title="File sharing">file sharing</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/BTDigg" title="BTDigg">BTDigg</a>*</li> <li><i><a href="/wiki/Freedom_Hosting" title="Freedom Hosting">Freedom Hosting</a></i></li> <li><i><a href="/wiki/Free_Haven_Project" title="Free Haven Project">Free Haven Project</a></i></li> <li><i><a href="/wiki/KickassTorrents" title="KickassTorrents">KickassTorrents</a></i></li> <li><a href="/wiki/The_Pirate_Bay" title="The Pirate Bay">The Pirate Bay</a>*</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Mailbox_provider" title="Mailbox provider">Email</a> and<br /><a href="/wiki/Instant_messaging" title="Instant messaging">instant messaging</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bitmessage" title="Bitmessage">Bitmessage.ch</a></li> <li><a href="/wiki/Briar_(software)" title="Briar (software)">Briar</a></li> <li><a href="/wiki/Keybase" title="Keybase">Keybase</a>*</li> <li><a href="/wiki/Proton_Mail" title="Proton Mail">Proton Mail</a>*</li> <li><a href="/wiki/Riseup" title="Riseup">Riseup</a>*</li> <li><i><a href="/wiki/Tor_Mail" title="Tor Mail">Tor Mail</a></i></li> <li><i><a href="/wiki/TorChat" title="TorChat">TorChat</a></i></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Social_media" title="Social media">Social media</a> and <a href="/wiki/Internet_forum" title="Internet forum">forums</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/8chan" title="8chan">8chan</a>*</li> <li><a href="/wiki/Dark0de" title="Dark0de">Dark0de</a></li> <li><a href="/wiki/Dread_(forum)" title="Dread (forum)">Dread</a></li> <li><a href="/wiki/Facebook_onion_address" title="Facebook onion address"> Facebook</a>*</li> <li><i><a href="/wiki/HackBB" title="HackBB">HackBB</a></i></li> <li><a href="/wiki/The_Hub_(forum)" title="The Hub (forum)">The Hub</a></li> <li><a href="/wiki/Reddit" title="Reddit">Reddit</a>*</li> <li><a href="/wiki/Twitter" title="Twitter">Twitter</a>*</li> <li><a href="/wiki/Kiwi_Farms" title="Kiwi Farms">Kiwi Farms</a>*</li> <li><a href="/wiki/The_Hidden_Wiki" title="The Hidden Wiki">The Hidden Wiki</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Financial</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Blockchain.com" title="Blockchain.com">Blockchain.com</a>*</li> <li><i><a href="/wiki/Grams_(search)#Helix" title="Grams (search)">Helix</a></i></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Darknet_market" title="Darknet market">Darknet markets</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Agora_(online_marketplace)" title="Agora (online marketplace)">Agora</a></i></li> <li><i><a href="/wiki/AlphaBay" title="AlphaBay">AlphaBay</a></i></li> <li><i><a href="/wiki/Atlantis_(market)" title="Atlantis (market)">Atlantis</a></i></li> <li><a href="/wiki/Archetyp_Market" title="Archetyp Market">Archetyp</a></li> <li><i><a href="/wiki/Black_Market_Reloaded" title="Black Market Reloaded">Black Market Reloaded</a></i></li> <li><i><a href="/wiki/Dream_Market" title="Dream Market">Dream Market</a></i></li> <li><i><a href="/wiki/Evolution_(marketplace)" title="Evolution (marketplace)">Evolution</a></i></li> <li><i><a href="/wiki/The_Farmer%27s_Market" title="The Farmer's Market">The Farmer's Market</a></i></li> <li><i><a href="/wiki/Hansa_(market)" title="Hansa (market)">Hansa</a></i></li> <li><a href="/wiki/Hydra_Market" title="Hydra Market">Hydra Market</a></li> <li><i><a href="/wiki/Sheep_Marketplace" title="Sheep Marketplace">Sheep Marketplace</a></i></li> <li><i><a href="/wiki/Silk_Road_(marketplace)" title="Silk Road (marketplace)">Silk Road</a></i></li> <li><i><a href="/wiki/TheRealDeal" title="TheRealDeal">TheRealDeal</a></i></li> <li><i><a href="/wiki/Russian_Anonymous_Marketplace" title="Russian Anonymous Marketplace">Russian Anonymous Marketplace</a></i></li> <li><i><a href="/wiki/Tor_Carding_Forum" title="Tor Carding Forum">Tor Carding Forum</a></i></li> <li><i><a href="/wiki/Utopia_(marketplace)" title="Utopia (marketplace)">Utopia</a></i></li> <li><i><a href="/wiki/White_House_Market" title="White House Market">White House Market</a></i></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Archive" title="Archive">Document archives</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Archive.today" title="Archive.today">Archive.today</a>*</li> <li><i><a href="/wiki/Doxbin_(darknet)" title="Doxbin (darknet)">Doxbin (darknet)</a></i></li> <li><a href="/wiki/Internet_Archive" title="Internet Archive">Internet Archive</a>*</li> <li><a href="/wiki/Sci-Hub" title="Sci-Hub">Sci-Hub</a>*</li> <li><a href="/wiki/Z-Library" title="Z-Library">Z-Library</a>*</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Nonprofit_organization" title="Nonprofit organization">Nonprofit organizations</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Amnesty_International" title="Amnesty International">Amnesty International</a>*</li> <li><a href="/wiki/Electronic_Frontier_Foundation" title="Electronic Frontier Foundation">Electronic Frontier Foundation</a>*</li> <li><a href="/wiki/Freedom_of_the_Press_Foundation" title="Freedom of the Press Foundation">Freedom of the Press Foundation</a>*</li> <li><a href="/wiki/Front_Line_Defenders" title="Front Line Defenders">Front Line Defenders</a>*</li> <li><a href="/wiki/La_Quadrature_du_Net" title="La Quadrature du Net">La Quadrature du Net</a>*</li> <li><a href="/wiki/Privacy_International" title="Privacy International">Privacy International</a>*</li> <li><a href="/wiki/Telecomix" title="Telecomix">Telecomix</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Operating_system" title="Operating system">Operating systems</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/DivestOS" title="DivestOS">DivestOS</a>*</li> <li><a href="/wiki/Qubes_OS" title="Qubes OS">Qubes OS</a>*</li> <li><a href="/wiki/Tails_(operating_system)" title="Tails (operating system)">Tails</a>*</li> <li><a href="/wiki/Whonix" title="Whonix">Whonix</a>*</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Government" title="Government">Government</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Central_Intelligence_Agency" title="Central Intelligence Agency">Central Intelligence Agency</a>*</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Whistleblowing" title="Whistleblowing">Whistleblowing</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Distributed_Denial_of_Secrets" title="Distributed Denial of Secrets">Distributed Denial of Secrets</a>*</li> <li><a href="/wiki/Associated_Whistleblowing_Press#Filtrala" title="Associated Whistleblowing Press">Filtrala</a></li> <li><a href="/wiki/GlobaLeaks" title="GlobaLeaks">GlobaLeaks</a></li> <li><a href="/wiki/Associated_Whistleblowing_Press#Ljost" title="Associated Whistleblowing Press">Ljost</a></li> <li><a href="/wiki/Nawaat#Nawaatleaks" title="Nawaat">NawaatLeaks</a></li> <li><a href="/wiki/SecureDrop" title="SecureDrop">SecureDrop</a>*</li> <li><a href="/wiki/WikiLeaks" title="WikiLeaks">WikiLeaks</a>*</li> <li><a href="/wiki/Elephant_Action_League#WildLeaks_Project" title="Elephant Action League">WildLeaks</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Pornography" title="Pornography">Pornography</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Boystown_(website)" title="Boystown (website)">Boystown</a></i></li> <li><i><a href="/wiki/Childs_Play_(website)" title="Childs Play (website)">Childs Play</a></i></li> <li><i><a href="/wiki/Lolita_City" title="Lolita City">Lolita City</a></i></li> <li><i><a href="/wiki/Playpen_(website)" title="Playpen (website)">Playpen</a></i></li> <li><a href="/wiki/Pornhub" title="Pornhub">Pornhub</a>*</li> <li><i><a href="/wiki/Welcome_to_Video_case" title="Welcome to Video case">Welcome to Video</a></i></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/1.1.1.1" title="1.1.1.1">1.1.1.1</a>*</li> <li><a href="/wiki/Brave_(web_browser)" title="Brave (web browser)">Brave</a>*</li> <li><a href="/wiki/DEF_CON" title="DEF CON">DEF CON</a>*</li> <li><a href="/wiki/F-Droid" title="F-Droid">F-Droid</a>*</li> <li><a href="/wiki/Mailpile" title="Mailpile">Mailpile</a>*</li> <li><a href="/wiki/Mullvad" title="Mullvad">Mullvad</a>*</li> <li><a href="/wiki/Njalla" title="Njalla">Njalla</a>*</li> <li><a href="/wiki/OnionShare" title="OnionShare">OnionShare</a>*</li> <li><a href="/wiki/Terms_of_Service;_Didn%27t_Read" title="Terms of Service; Didn't Read">Terms of Service; Didn't Read</a>*</li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div>Sites in <i>italics</i> are now offline or discontinued (not counting ambiguously <a href="/wiki/Fork_(software_development)" title="Fork (software development)">forked</a> sites). <ul><li><a href="/wiki/Tor_(network)#Onion_services" title="Tor (network)">Tor</a></li> <li><a href="/wiki/.onion" title=".onion">.onion domain</a></li> <li><a href="/wiki/Tor2web" title="Tor2web">Tor2web</a></li> <li> *Maintains additional presence on the surface web </li></ul></div></td></tr></tbody></table></div> <p><br /> </p> <style data-mw-deduplicate="TemplateStyles:r1012311289">.mw-parser-output .asbox{position:relative;overflow:hidden}.mw-parser-output .asbox table{background:transparent}.mw-parser-output .asbox p{margin:0}.mw-parser-output .asbox p+p{margin-top:0.25em}.mw-parser-output .asbox-body{font-style:italic}.mw-parser-output .asbox-note{font-size:smaller}.mw-parser-output .asbox .navbar{position:absolute;top:-0.75em;right:1em;display:none}</style><div role="note" class="metadata plainlinks asbox stub"><table role="presentation"><tbody><tr class="noresize"><td><span typeof="mw:File"><a href="/wiki/File:Crystal_Clear_app_linneighborhood.svg" class="mw-file-description"><img alt="Stub icon" 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