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<!DOCTYPE html><html data-wf-domain="www.hcaptcha.com" data-wf-page="64da82f6bf67de1b1278906b" data-wf-site="64da82f6bf67de1b12789030" lang="en"><head><meta charset="utf-8"><title>hCaptcha - About Us</title><meta content="Do you use a captcha to keep out bots? hCaptcha is a drop-in replacement for reCAPTCHA that earns website owners money and helps companies get their data labeled." name="description"><meta content="hCaptcha - About Us" property="og:title"><meta content="Do you use a captcha to keep out bots? hCaptcha is a drop-in replacement for reCAPTCHA that earns website owners money and helps companies get their data labeled." property="og:description"><meta content="hCaptcha - About Us" property="twitter:title"><meta content="Do you use a captcha to keep out bots? hCaptcha is a drop-in replacement for reCAPTCHA that earns website owners money and helps companies get their data labeled." property="twitter:description"><meta property="og:type" content="website"><meta 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15.0033 2.91149 15.6366 3.30202 16.0271C3.69254 16.4177 4.32555 16.4175 4.71588 16.0268L9.65827 11.0794L14.6006 16.0268C14.991 16.4175 15.624 16.4176 16.0145 16.0271C16.405 15.6366 16.4052 15.0033 16.0149 14.6126L11.0718 9.66447L16.0239 4.70737C16.4142 4.31665 16.4141 3.68332 16.0235 3.2928C15.633 2.90227 15 2.90243 14.6097 3.29316L9.65827 8.24955L4.70685 3.29315C4.31653 2.90242 3.68352 2.90226 3.293 3.29279Z" fill="currentColor"></path> </svg></div></div></div></div></div></div><div aria-hidden="false" class="desktop-menu"><div class="navbar-container-dekstop"><a aria-label="hCaptcha homepage" href="index.html" class="hcaptcha-logo logo-nav w-nav-brand"></a><div class="header-nav"><a href="pricing.html" class="nav-link vavilon w-nav-link">Pricing</a><a href="pro.html" class="nav-link vavilon w-nav-link">Pro</a><a href="index.html#enterprise-features" class="nav-link vavilon w-nav-link">Enterprise</a><a href="https://docs.hcaptcha.com/" class="nav-link vavilon w-nav-link">Docs</a><a href="blog.html" class="nav-link vavilon w-nav-link">Blog</a></div><div class="cta-nav"><div class="headerv2-cta-contaienr header"><div><a href="start-a-pilot.html">Contact Sales</a></div><a href="pricing.html" id="w-node-e22d0e3d-0fd4-b1ef-84e4-43111614a9c6-1614a9c6" class="btn-signup w-button">Sign Up</a><a href="https://dashboard.hcaptcha.com/login" id="w-node-cc03cbc4-d1b0-7d41-521c-8a2094b44f57-94b44f57" class="button btn-stroke btn-login w-button">Log In</a></div></div></div></div></div><div class="section"><div class="container content-hero"><div class="hero-info center extra-margin"><h5 class="grey-500-text">About hCaptcha</h5><h1 class="title center-text max-width480 nomargin blue-700-text">Privacy, Security, and Machine Learning.<br></h1><h4 class="center-text max-380 more-padding">hCaptcha is the world's most widely used independent CAPTCHA service.</h4><div class="cta-demo"><a href="publisher.html" class="button btn-large btn-stroke w-button">Learn More</a><a href="signup-interstitial.html" class="button btn-large w-button">Contact Sales</a></div></div></div></div><div class="section grey-700 half-grey-100"><div class="container"><div class="div-block-80 half-half"><div id="w-node-a6554ca6-0690-07ae-a73d-57b3b2a44b6d-1278906b" class="content full-width-card white grey-050"><h3 class="no-margin grey-800-text">Privacy Focused</h3><h6 class="grey-800-text">hCaptcha brings a modern, privacy-focused approach to stopping bots and human abuse.</h6><p>Our systems are thus designed from the ground up to minimize data collection and retention while maintaining class-leading security. The best way to protect user data is not to store it at all.</p></div><div id="w-node-a6554ca6-0690-07ae-a73d-57b3b2a44b74-1278906b" class="content full-width-card white grey-050"><h3 class="no-margin grey-800-text">Security First</h3><h6 class="grey-800-text">Bad actors are increasingly common online. But sacrificing user privacy is not the answer.</h6><p>Security solutions offered by ad companies focus primarily on tracking users across the web. We have created an effective security solution that proves harming user privacy is not necessary to deliver excellent results.<br></p></div></div></div></div><div class="section grey-100"><div class="container"><div class="content max-width-560"><h1 class="center-text no-margin grey-800-text">Who we are</h1><h4 class="center-text grey-800-text"><span>An experienced team, working on today's hardest problems. hCaptcha is a service of</span> <a href="https://www.imachines.com" target="_blank"><span data-vavilon="do-not-translate">Intuition Machines</span></a>.</h4><p class="center-text">With decades of software and ML expertise, we build and operate massively scalable systems to tackle some of today's hardest problems while preserving privacy.<br></p><p class="center-text">We specialize in deep learning and visual domain machine learning at scale, with a particular focus on securing online systems from sophisticated modern threats.<br></p></div></div></div><div class="section half-grey-100"><div class="container no-padding-bottom"><div class="content"><h1 class="center-text no-margin grey-800-text">Advisors</h1></div><div class="content"><div class="div-block-76"><div id="w-node-bed71416-8e20-0fa2-ede0-bfe125ce9271-1278906b" class="info-item alt1"><div class="div-block-96 center-vertical"><img src="images/6503264a77572e0840e61b59_brendan-advisor-w.jpeg" loading="lazy" sizes="(max-width: 479px) 100vw, (max-width: 767px) 89vw, (max-width: 991px) 44vw, 42vw" srcset="images/6503264a77572e0840e61b59_brendan-advisor-w-p-500.jpeg 500w, images/6503264a77572e0840e61b59_brendan-advisor-w.jpeg 546w" alt="" class="image-31 first"></div><div class="div-block-95"><h4 data-vavilon="brendan-eich">Brendan Eich</h4><p class="beich-desc">CEO of Brave. Co-founder of Mozilla. Creator of the JavaScript programming language. Builder of browsers and more.<br></p></div></div><div id="w-node-bed71416-8e20-0fa2-ede0-bfe125ce927a-1278906b" class="info-item alt1"><div class="div-block-96 center-vertical"><img src="images/64da82f6bf67de1b12789263_W25_DawnSong_Dina-Litovsky-DSC_1060.jpeg" loading="lazy" srcset="images/64da82f6bf67de1b12789263_W25_DawnSong_Dina-Litovsky-DSC_1060-p-500.jpeg 500w, images/64da82f6bf67de1b12789263_W25_DawnSong_Dina-Litovsky-DSC_1060-p-800.jpeg 800w, images/64da82f6bf67de1b12789263_W25_DawnSong_Dina-Litovsky-DSC_1060.jpeg 1564w" sizes="(max-width: 479px) 100vw, (max-width: 767px) 89vw, (max-width: 991px) 50vw, 42vw" alt="photo of Dawn Song" class="image-31 advisor"></div><div class="div-block-95"><h4 data-vavilon="dawn-song">Dawn Song</h4><p>Professor, CS at University of California, Berkeley. Deep learning, security, blockchain expert. CEO of Oasis Labs.<br></p></div></div><div id="w-node-bed71416-8e20-0fa2-ede0-bfe125ce9283-1278906b" class="info-item alt1 hidden"><div class="div-block-96 center-vertical"><img src="images/64da82f6bf67de1b12789162_advisor-keiran.jpg" loading="lazy" alt="photo of Keiran Thompson" class="image-31 advisor"></div><div class="div-block-95"><h4 data-vavilon="kieran-thompson">Kieran Thompson</h4><p>Research Scientist at Stanford. Machine learning and quant finance at major banks, hedge funds, and academia.<br></p></div></div></div></div></div></div><div class="section"><div class="container"><div class="content"><div><h5 class="grey-700-text text-center">Sign up free or contact us about hCaptcha Enterprise solutions</h5><div class="headerv2-cta-contaienr margin-bottom center extra-margin"><a href="signup-interstitial.html" id="w-node-a2026fcc-8ca2-63ee-ab87-1b480bd4d641-1278906b" class="button btn-large w150 w-button">Sign Up</a><a href="signup-interstitial.html" class="button btn-large btn-stroke w-button">Contact Sales</a></div></div></div></div></div><div bind="6395893a-e5fe-ad5b-d853-97b7d8379d42" role="navigation" aria-label="Footer" class="section grey-400-stroke"><div class="container padding-0topbottom"><div class="footer-nav"><div class="footer-logo"><a aria-label="homepage link" tabindex="-1" href="labeling.html" class="hcaptcha-logo footer-logo w-inline-block"></a><div class="footer-social"><div 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@name module:Language#getShortLocale * @return {string} Restricts the ISO 639-1 Language Code to two chracters * @example * en-us > en */ getShortLocale: function(locale) { return locale.substring(0, 2); } }; // find manually data-tagged but missing translation class var textM = $('body *').contents().filter(function() { return ($(this).parent().data("vavilon") != null) && (!$(this).parent().hasClass("vavilon")); }); // tag with class textM.each(function( index ) { $(this).parent().addClass("vavilon"); }); // tag all elements based on content for ease of translation // MurmurHash 3, MIT license. https://github.com/jensyt/imurmurhash-js/blob/master/imurmurhash.min.js !function(){function t(h,r){var s=this instanceof t?this:e;return s.reset(r),"string"==typeof h&&h.length>0&&s.hash(h),s!==this?s:void 0}var e;t.prototype.hash=function(t){var e,h,r,s,i;switch(i=t.length,this.len+=i,h=this.k1,r=0,this.rem){case 0:h^=i>r?65535&t.charCodeAt(r++):0;case 1:h^=i>r?(65535&t.charCodeAt(r++))<<8:0;case 2:h^=i>r?(65535&t.charCodeAt(r++))<<16:0;case 3:h^=i>r?(255&t.charCodeAt(r))<<24:0,h^=i>r?(65280&t.charCodeAt(r++))>>8:0}if(this.rem=3&i+this.rem,i-=this.rem,i>0){for(e=this.h1;;){if(h=4294967295&11601*h+3432906752*(65535&h),h=h<<15|h>>>17,h=4294967295&13715*h+461832192*(65535&h),e^=h,e=e<<13|e>>>19,e=4294967295&5*e+3864292196,r>=i)break;h=65535&t.charCodeAt(r++)^(65535&t.charCodeAt(r++))<<8^(65535&t.charCodeAt(r++))<<16,s=t.charCodeAt(r++),h^=(255&s)<<24^(65280&s)>>8}switch(h=0,this.rem){case 3:h^=(65535&t.charCodeAt(r+2))<<16;case 2:h^=(65535&t.charCodeAt(r+1))<<8;case 1:h^=65535&t.charCodeAt(r)}this.h1=e}return this.k1=h,this},t.prototype.result=function(){var t,e;return t=this.k1,e=this.h1,t>0&&(t=4294967295&11601*t+3432906752*(65535&t),t=t<<15|t>>>17,t=4294967295&13715*t+461832192*(65535&t),e^=t),e^=this.len,e^=e>>>16,e=4294967295&51819*e+2246770688*(65535&e),e^=e>>>13,e=4294967295&44597*e+3266445312*(65535&e),e^=e>>>16,e>>>0},t.prototype.reset=function(t){return this.h1="number"==typeof t?t:0,this.rem=this.k1=this.len=0,this},e=new t,"undefined"!=typeof module?module.exports=t:this.MurmurHash3=t}(); // find untagged strings var textS = $('body *').contents().filter(function() { return (this.nodeType == 3) && (this.nodeValue.length > 3) && this.nodeValue.match(/[a-z]/) && (! this.nodeValue.match(/\@|©/)) && ($(this).parent().data("vavilon") == null || typeof $(this).parent().data("vavilon") === 'number') && (!$(this).parent().is("script")) && $(this).parents('.code-snippet').length === 0; }); tKeys = {} // tag with hash textS.each(function( index ) { var h = MurmurHash3(this.nodeValue).result(); $(this).parent().attr("data-vavilon", h).addClass("vavilon"); // hack to preserve insertion order: V8 re-sorts "string" ints. tKeys['XXXHHH' + h] = $(this).text().trim(); // tKeys[h] = $(this).text().trim(); }); // output for key file // console.log(JSON.stringify(tKeys)); // check if vavilon cookie is set var c = document.cookie.split(";"); var lang; for (var i=0; i < c.length; i++) if (c[i].indexOf("vavilon") >= 0) lang = c[i].split("=")[1] var urlParams = new URLSearchParams(window.location.search); var hl_lang = urlParams.get('hl'); if (hl_lang && (hl_lang.length > 5 || ! /^[a-zA-Z0-9\-]+$/.test(hl_lang))) { // reject invalid hl param: too long or unexpected chars hl_lang = null; } var browser_lang = Language.getLocale(hl_lang); var pathname = window.location.pathname; // var asset_root = "https://assets.hcaptcha.com/website-i18n"; if (browser_lang.indexOf("zh") >= 0) { var asset_root = "https://website-i18n.hcaptcha.com"; } else { var asset_root = "https://newassets.hcaptcha.com/website-i18n"; } var page = "main"; var tr_path = asset_root + "/" + browser_lang + "/" + page + ".json"; var en_path = asset_root + "/" + "en" + "/" + page + ".json"; function updateOpt(lang) { $("#switch-to-english").text("Switch to " + lang.toUpperCase()); var finalStr = "javascript:setLang('" + lang + "'); $('html').attr('lang', '" + lang + "');" if (lang != "en") { finalStr += "updateOpt('en');"; } else { finalStr += "updateOpt('" + browser_lang + "');"; } document.getElementById("switch-to-english").href = finalStr; } function switchToEnglish() { $("html").attr("lang", "en"); setLang('en'); updateOpt(browser_lang); } if ((hl_lang && hl_lang !== "en") || (browser_lang !== "en" && lang !== 'en')) { $("html").attr("lang", browser_lang); // unhide switch to english part on block $('#switch-to-english').show(); // load correct lang JSON var element = document.createElement("script"); element.src = tr_path; element.setAttribute("type", "application/json"); element.setAttribute("data-vavilon-dict", browser_lang); document.body.appendChild(element); var haveEn = $('script').filter(function() { return $(this).attr("data-vavilon-dict") === 'en'; }).length > 0; // do we need to load en? if (! haveEn) { // load en lang JSON to switch var element2 = document.createElement("script"); element2.src = en_path; element2.setAttribute("type", "application/json"); element2.setAttribute("data-vavilon-dict", "en"); document.body.appendChild(element2); } // due to element race setTimeout(function() { // load vavilon JS // var element2 = document.createElement("script"); // element2.src = "https://newassets.hcaptcha.com/website-tr/js/vavilon_mod.min.js"; //"https://assets.hcaptcha.com/website-tr-js/vavilon.min.js"; // document.body.appendChild(element2); // setLang(browser_lang) // once more, just in case // direct insertion !function(){"use strict";var o=(n.prototype.hasString=function(n){return this.strings.hasOwnProperty(n)},n.prototype.load=function(t){var i=this;!function(n,t){var i=new XMLHttpRequest;i.onload=function(){this.status<300&&200<=this.status&&t&&t(i.responseText)},i.open("GET",n,!0),i.send()}(this.url,function(n){i.strings=JSON.parse(n),t&&t()})},n);function n(n,t){void 0===t&&(t={}),this.url=n,this.strings=t}function t(n){var t=new Date;t.setTime(t.getTime()+31536e7);var i="; expires="+t.toUTCString();document.cookie="vavilon-locale="+(n||"")+i+"; path=/"}function i(){return(function(){var n=("; "+document.cookie).split("; vavilon-locale=");return 2===n.length?n[1].split(";")[0]:null}()||window.navigator.language||window.browserLanguage||window.userLanguage).toLowerCase()}function u(){this.n=i(),this.t=document.documentElement.lang.toLowerCase(),this.i=null,this.o={},this.u=null}var c=new(u.prototype.find=function(){this.i=document.getElementsByClassName("vavilon")},u.prototype.replace=function(){var i=this;this.i&&this.u&&(this.o[this.t]||(this.o[this.t]=new o(null)),Array.from(this.i).forEach(function(n){var t=n.dataset.vavilon;i.o[i.u].hasString(t)&&(i.o[i.t].hasString(t)||(i.o[i.t].strings[t]=n.innerText.trim()),n.innerHTML=i.o[i.u].strings[t])}))},u.prototype.addDicts=function(){var i=this;Array.from(document.scripts).filter(function(n){return n.dataset.hasOwnProperty("vavilonDict")}).forEach(function(n){var t=n.dataset.vavilonDict.toLowerCase();i.o[t]=new o(n.src)})},u.prototype.loadDicts=function(t){var i=this;Object.keys(this.o).forEach(function(n){n===i.n||n.slice(0,2)===i.n.slice(0,2)&&!i.u?(i.u=n,i.o[n].load(function(){i.pageDictLoaded=!0,t()})):i.o[n].load()})},u.prototype.setLocale=function(n){return this.o[n]?(this.u=n,t(this.u),!0):!!this.o[n.slice(0,2)]&&(this.u=n.slice(0,2),t(this.u),!0)},u),s=!1;c.addDicts(),c.loadDicts(function(){s&&c.replace()}),window.onload=function(){c.find(),s=!0,c.pageDictLoaded&&c.replace()},window.setLang=function(n){n=n.toLowerCase(),c.setLocale(n)&&c.replace()}}(); // make sure we translate window.onload() // double up for manual override if (hl_lang !== null) { // console.log("lang", hl_lang) setLang(hl_lang); setTimeout(function() { setLang(hl_lang); }, 300); } else { // console.log("browser_lang", browser_lang) setLang(browser_lang); setTimeout(function() { setLang(browser_lang); }, 300); } // race document.getElementById("switch-to-english").href = "javascript:switchToEnglish();"; }, 300); } else { // if (browser_lang == "en") { // $('#switch-to-english').hide(); // } // we show the block on main page always page because of the link to /accessibility // but the block is not visible by default on accessibility page as it only contains // switch language option if (window.location.pathname === '/accessibility') { $('#acc-switch-block').hide(); } }; </script> <script defer="" src="https://static.cloudflareinsights.com/beacon.min.js" data-cf-beacon="{"token": "07c762c369a9497f86fdfb1774ba0fb9"}"></script> <script type="text/javascript"> function getRefQueryParam(name) { name = name.replace(/[\[]/, '\\[').replace(/[\]]/, '\\]'); var regex = new RegExp('[\\?&]' + name + '=([^&#]*)'); var results = regex.exec(location.search); return results === null ? '' : decodeURIComponent(results[1].replace(/\+/g, ' ')); }; var utmParamQueryString = '', utmParamQueryStringTrimmed = '', utm_source = '', utm_medium = '', utm_content = '', utm_campaign = '', utm_term = ''; (function() { utm_source = getRefQueryParam("utm_source"); utm_medium = getRefQueryParam("utm_medium"); utm_content = getRefQueryParam("utm_content"); utm_campaign = getRefQueryParam("utm_campaign"); utm_term = getRefQueryParam("utm_term"); if (utm_source) { utmParamQueryString += '&utm_source=' + utm_source; } if (utm_medium) { utmParamQueryString += '&utm_medium=' + utm_medium; } if (utm_content) { utmParamQueryString += '&utm_content=' + utm_content; } if (utm_campaign) { utmParamQueryString += '&utm_campaign=' + utm_campaign; } if (utm_term) { utmParamQueryString += '&utm_term=' + utm_term; } if(utmParamQueryString.length > 0) { utmParamQueryString = utmParamQueryString.substring(1); utmParamQueryStringTrimmed = utmParamQueryString; utmParamQueryString = utmParamQueryString; } if (!utmParamQueryString) return; var navLinks = document.querySelectorAll('a'); navLinks.forEach(function(item) { if (item.href.indexOf('mailto:') == -1 && (item.href.indexOf('/') === 0 || item.href.indexOf('botstop.com') !== -1 || item.href.indexOf('hcaptcha.com') !== -1)) { if (item.href.indexOf('?') === -1) { item.href += '?'; } else { item.href += '&'; } item.href += utmParamQueryString; } }); })(); </script><script defer src='https://static.cloudflareinsights.com/beacon.min.js' data-cf-beacon='{"token": "832e9d9ca0b94a568ba9d035a7fc0b87"}'></script></body></html>