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<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Blog on</title><link>/blog/</link><description>Recent content in Blog on</description><generator>Hugo -- gohugo.io</generator><language>en-US</language><atom:link href="/blog/index.xml" rel="self" type="application/rss+xml"/><item><title>Survey</title><link>/blog/survey/</link><pubDate>Thu, 28 Oct 2021 00:00:00 +0000</pubDate><guid>/blog/survey/</guid><description>Survey link: https://survey.mcaptcha.org/survey/campaigns/b717e51e-24d4-4ab6-912f-de2dfe3ce1fe/about
mCaptcha relies on a proof-of-work(PoW) mechanism to guard against bots. In order for this to be effective, the difficulty factor should be configured properly. If the difficulty factor is too high all the time, it will inconvenience the users and if it&amp;rsquo;s too low during attack, the defence will be weak.
So we are conducting a survey to gather performance benchmarks from various devices and browsers. The data collected from the survey will be made public, we believe it will guide sysadmins configure difficulty factor properly.</description></item><item><title>PoW performance</title><link>/blog/pow-performance/</link><pubDate>Wed, 01 Sep 2021 00:00:00 +0000</pubDate><guid>/blog/pow-performance/</guid><description>mCaptcha uses a proof-of-work(PoW) mechanism to rate limit users or potential bots. In order for this to be effective, the PoW should be configured properly. The difficulty requirement can&amp;rsquo;t be too high, as it could cause accessibility issues on the client-side while at the same time, it shouldn&amp;rsquo;t be too low, as it wouldn&amp;rsquo;t offer proper protection against bots.
Malicious bots(the ones that wreak havoc), run native code which is capable of running in a multi-threaded context.</description></item><item><title>Say hello to mCaptcha</title><link>/blog/say-hello-to-mcaptcha/</link><pubDate>Wed, 26 May 2021 00:00:00 +0000</pubDate><guid>/blog/say-hello-to-mcaptcha/</guid><description>At mCaptcha, we believe in digital freedom and privacy and so we built an proof-of-work based CAPTCHA system that doesn&amp;rsquo;t track. Seriously, no tracking. But that isn&amp;rsquo;t the killer feature, our system doesn&amp;rsquo;t require the user to pick cars or ID sidewalks &amp;mdash; our system does it&amp;rsquo;s thing(usually at the click of a button) and gets out of the way.
Malicious bots(the ones that wreak havoc), run native code which is capable of running in a multi-threaded context.</description></item><item><title>Say hello to mCaptcha</title><link>/blog/say-hello-to-mcaptcha/</link><pubDate>Wed, 26 May 2021 00:00:00 +0000</pubDate><guid>/blog/say-hello-to-mcaptcha/</guid><description>At mCaptcha, we believe in digital freedom and privacy and so we built a proof-of-work based CAPTCHA system that doesn&amp;rsquo;t track. Seriously, no tracking. But that isn&amp;rsquo;t the killer feature, our system doesn&amp;rsquo;t require the user to pick cars or ID sidewalks &amp;mdash; our system does it&amp;rsquo;s thing(usually at the click of a button) and gets out of the way.
How does it work? mCaptcha uses SHA256 based proof-of-work(PoW) to rate limit users.</description></item></channel></rss>

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<!doctype html><html lang=en-us><head><meta charset=utf-8><meta http-equiv=x-ua-compatible content="ie=edge"><meta name=viewport content="width=device-width,initial-scale=1,shrink-to-fit=no"><link rel=preload as=font href=/fonts/vendor/jost/jost-v4-latin-regular.woff2 type=font/woff2 crossorigin><link rel=preload as=font href=/fonts/vendor/jost/jost-v4-latin-700.woff2 type=font/woff2 crossorigin><link rel=stylesheet href=/main.d731b24f97a905b851b9151339aca0f6a9b1c45ed16584cee7a4113d98d2a3db570c096603fbf15fbe9bbf092715cc742abaea351b4767239dbfedfffc08ebdb.css integrity="sha512-1zGyT5epBbhRuRUTOayg9qmxxF7RZYTO56QRPZjSo9tXDAlmA/vxX76bvwknFcx0KrrqNRtHZyOdv+3//Ajr2w==" crossorigin=anonymous><noscript><style>img.lazyload{display:none}</style></noscript><meta name=robots content="index, follow"><meta name=googlebot content="index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1"><meta name=bingbot content="index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1"><title>Say hello to mCaptcha - mCaptcha</title><meta name=description content="Introducing mCaptcha, a kickass CAPTCHA systems that gives (DDoS) attackers a run for their money. Oh and UX is great too!"><link rel=canonical href=/blog/say-hello-to-mcaptcha/><meta name=twitter:card content="summary_large_image"><meta name=twitter:image content="/blog/say-hello-to-mcaptcha/icon.png"><meta name=twitter:title content="Say hello to mCaptcha"><meta name=twitter:description content="Introducing mCaptcha, a kickass CAPTCHA systems that gives (DDoS) attackers a run for their money. Oh and UX is great too!"><meta name=twitter:site content="@"><meta name=twitter:creator content="@"><meta property="og:title" content="Say hello to mCaptcha"><meta property="og:description" content="Introducing mCaptcha, a kickass CAPTCHA systems that gives (DDoS) attackers a run for their money. Oh and UX is great too!"><meta property="og:type" content="article"><meta property="og:url" content="/blog/say-hello-to-mcaptcha/"><meta property="og:image" content="/blog/say-hello-to-mcaptcha/icon.png"><meta property="article:published_time" content="2021-05-26T00:00:00+00:00"><meta property="article:modified_time" content="2021-12-02T10:25:42+05:30"><meta property="og:site_name" content="mCaptcha"><meta property="article:publisher" content="https://www.facebook.com/"><meta property="article:author" content="https://www.facebook.com/"><meta property="og:locale" content="en_US"><script type=application/ld+json>{"@context":"http://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"\/"},{"@type":"ListItem","position":2,"name":"Blogsay Hello to Mcaptcha","item":"\/blogsay-hello-to-mcaptcha\/"}]}</script><meta name=theme-color content="#fff"><link rel=apple-touch-icon sizes=180x180 href=/apple-touch-icon.png><link rel=icon type=image/png sizes=32x32 href=/favicon-32x32.png><link rel=icon type=image/png sizes=16x16 href=/favicon-16x16.png><link rel=manifest href=/site.webmanifest></head><body class="blog single"><div class="header-bar fixed-top"></div><header class="navbar fixed-top navbar-expand-md navbar-light"><div class=container><input class="menu-btn order-0" type=checkbox id=menu-btn>
<label class="menu-icon d-md-none" for=menu-btn><span class=navicon></span></label><a class="navbar-brand order-1 order-md-0 me-auto" href=/>mCaptcha</a>
<button id=mode class="btn btn-link order-2 order-md-4" type=button aria-label="Toggle mode">
<span class=toggle-dark><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentcolor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-moon"><path d="M21 12.79A9 9 0 1111.21 3 7 7 0 0021 12.79z"/></svg></span><span class=toggle-light><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentcolor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-sun"><circle cx="12" cy="12" r="5"/><line x1="12" y1="1" x2="12" y2="3"/><line x1="12" y1="21" x2="12" y2="23"/><line x1="4.22" y1="4.22" x2="5.64" y2="5.64"/><line x1="18.36" y1="18.36" x2="19.78" y2="19.78"/><line x1="1" y1="12" x2="3" y2="12"/><line x1="21" y1="12" x2="23" y2="12"/><line x1="4.22" y1="19.78" x2="5.64" y2="18.36"/><line x1="18.36" y1="5.64" x2="19.78" y2="4.22"/></svg></span></button><ul class="navbar-nav social-nav order-3 order-md-5"><li class=nav-item><a class=nav-link href=https://github.com/mCaptcha><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentcolor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-github"><path d="M9 19c-5 1.5-5-2.5-7-3m14 6v-3.87a3.37 3.37.0 00-.94-2.61c3.14-.35 6.44-1.54 6.44-7A5.44 5.44.0 0020 4.77 5.07 5.07.0 0019.91 1S18.73.65 16 2.48a13.38 13.38.0 00-7 0C6.27.65 5.09 1 5.09 1A5.07 5.07.0 005 4.77 5.44 5.44.0 003.5 8.55c0 5.42 3.3 6.61 6.44 7A3.37 3.37.0 009 18.13V22"/></svg><span class="ms-2 visually-hidden">GitHub</span></a></li></ul><div class="collapse navbar-collapse order-4 order-md-1"><ul class="navbar-nav main-nav me-auto order-5 order-md-2"><li class=nav-item><a class=nav-link href=/about/>About</a></li><li class="nav-item active"><a class=nav-link href=/blog/>Blog</a></li><li class=nav-item><a class=nav-link href=/community/>Community</a></li><li class=nav-item><a class=nav-link href=/contact/>Contact</a></li><li class=nav-item><a class=nav-link href=/docs/prologue/introduction/>Docs</a></li></ul><div class="break order-6 d-md-none"></div><form class="navbar-form flex-grow-1 order-7 order-md-3"><input id=userinput class="form-control is-search" type=search placeholder="Search docs..." aria-label="Search docs..." autocomplete=off><div id=suggestions class="shadow bg-white rounded"></div></form></div></div></header><div class="wrap container" role=document><div class=content><div class="row flex-xl-nowrap"><nav class="docs-toc d-none d-xl-block col-xl-3" aria-label="Secondary navigation"><div class=page-links><h3>On this page</h3><nav id=TableOfContents><ul><li><a href=#how-does-it-work>How does it work?</a></li><li><a href=#okay-but-what-about-bad-actors>Okay, but what about bad actors?</a></li><li><a href=#why-use-mcaptcha>Why use mCaptcha?</a></li><li><a href=#how-to-migrate>How to migrate?</a></li><li><a href=#our-philosophy>Our Philosophy</a></li><li><a href=#resources>Resources</a></li></ul></nav></div></nav><main class="docs-content col-lg-11 col-xl-9 mx-xl-auto"><article><div class=blog-header><h1>Say hello to mCaptcha</h1><p><small>Posted May 26, 2021 by <a class="stretched-link position-relative" href=/contributors/aravinth-manivannan/>Aravinth Manivannan</a>&nbsp;&dash;&nbsp;<strong>2&nbsp;min read</strong></small><p><p><small>Last Edited September 1, 2021</small><p></div><p class=lead>We are mCaptcha. We build kickass CAPTCHA systems that give (DDoS) attackers a run for their money. And we do all of this without tracking your users. Oh and did I mention our UX is great?</p><p>At mCaptcha, we believe in digital freedom and privacy and so we built an
<span class=toggle-dark><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentcolor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-moon"><path d="M21 12.79A9 9 0 1111.21 3 7 7 0 0021 12.79z"/></svg></span><span class=toggle-light><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentcolor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-sun"><circle cx="12" cy="12" r="5"/><line x1="12" y1="1" x2="12" y2="3"/><line x1="12" y1="21" x2="12" y2="23"/><line x1="4.22" y1="4.22" x2="5.64" y2="5.64"/><line x1="18.36" y1="18.36" x2="19.78" y2="19.78"/><line x1="1" y1="12" x2="3" y2="12"/><line x1="21" y1="12" x2="23" y2="12"/><line x1="4.22" y1="19.78" x2="5.64" y2="18.36"/><line x1="18.36" y1="5.64" x2="19.78" y2="4.22"/></svg></span></button><ul class="navbar-nav social-nav order-3 order-md-5"><li class=nav-item><a class=nav-link href=https://github.com/mCaptcha><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentcolor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-github"><path d="M9 19c-5 1.5-5-2.5-7-3m14 6v-3.87a3.37 3.37.0 00-.94-2.61c3.14-.35 6.44-1.54 6.44-7A5.44 5.44.0 0020 4.77 5.07 5.07.0 0019.91 1S18.73.65 16 2.48a13.38 13.38.0 00-7 0C6.27.65 5.09 1 5.09 1A5.07 5.07.0 005 4.77 5.44 5.44.0 003.5 8.55c0 5.42 3.3 6.61 6.44 7A3.37 3.37.0 009 18.13V22"/></svg><span class="ms-2 visually-hidden">GitHub</span></a></li></ul><div class="collapse navbar-collapse order-4 order-md-1"><ul class="navbar-nav main-nav me-auto order-5 order-md-2"><li class=nav-item><a class=nav-link href=/about/>About</a></li><li class="nav-item active"><a class=nav-link href=/blog/>Blog</a></li><li class=nav-item><a class=nav-link href=/community/>Community</a></li><li class=nav-item><a class=nav-link href=/contact/>Contact</a></li><li class=nav-item><a class=nav-link href=/docs/prologue/introduction/>Docs</a></li></ul><div class="break order-6 d-md-none"></div><form class="navbar-form flex-grow-1 order-7 order-md-3"><input id=userinput class="form-control is-search" type=search placeholder="Search docs..." aria-label="Search docs..." autocomplete=off><div id=suggestions class="shadow bg-white rounded"></div></form></div></div></header><div class="wrap container" role=document><div class=content><div class="row flex-xl-nowrap"><nav class="docs-toc d-none d-xl-block col-xl-3" aria-label="Secondary navigation"><div class=page-links><h3>On this page</h3><nav id=TableOfContents><ul><li><a href=#how-does-it-work>How does it work?</a></li><li><a href=#okay-but-what-about-bad-actors>Okay, but what about bad actors?</a></li><li><a href=#why-use-mcaptcha>Why use mCaptcha?</a></li><li><a href=#how-to-migrate>How to migrate?</a></li><li><a href=#our-philosophy>Our Philosophy</a></li><li><a href=#resources>Resources</a></li></ul></nav></div></nav><main class="docs-content col-lg-11 col-xl-9 mx-xl-auto"><article><div class=blog-header><h1>Say hello to mCaptcha</h1><p><small>Posted May 26, 2021 by <a class="stretched-link position-relative" href=/contributors/aravinth-manivannan/>Aravinth Manivannan</a>&nbsp;&dash;&nbsp;<strong>2&nbsp;min read</strong></small><p><p><small>Last Edited December 2, 2021</small><p></div><p class=lead>We are mCaptcha. We build kickass CAPTCHA systems that give (DDoS) attackers a run for their money. And we do all of this without tracking your users. Oh and did I mention our UX is great?</p><p>At mCaptcha, we believe in digital freedom and privacy and so we built a
<a href=https://en.wikipedia.org/wiki/Proof_of_work>proof-of-work</a> based
CAPTCHA system that doesn&rsquo;t track. Seriously, no tracking. But that
isn&rsquo;t the killer feature, our system doesn&rsquo;t require the user to

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<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Aravinth Manivannan on</title><link>/contributors/aravinth-manivannan/</link><description>Recent content in Aravinth Manivannan on</description><generator>Hugo -- gohugo.io</generator><language>en-US</language><lastBuildDate>Wed, 26 May 2021 00:00:00 +0000</lastBuildDate><atom:link href="/contributors/aravinth-manivannan/index.xml" rel="self" type="application/rss+xml"/><item><title>Survey</title><link>/blog/survey/</link><pubDate>Thu, 28 Oct 2021 00:00:00 +0000</pubDate><guid>/blog/survey/</guid><description>Survey link: https://survey.mcaptcha.org/survey/campaigns/b717e51e-24d4-4ab6-912f-de2dfe3ce1fe/about
mCaptcha relies on a proof-of-work(PoW) mechanism to guard against bots. In order for this to be effective, the difficulty factor should be configured properly. If the difficulty factor is too high all the time, it will inconvenience the users and if it&amp;rsquo;s too low during attack, the defence will be weak.
So we are conducting a survey to gather performance benchmarks from various devices and browsers. The data collected from the survey will be made public, we believe it will guide sysadmins configure difficulty factor properly.</description></item><item><title>PoW performance</title><link>/blog/pow-performance/</link><pubDate>Wed, 01 Sep 2021 00:00:00 +0000</pubDate><guid>/blog/pow-performance/</guid><description>mCaptcha uses a proof-of-work(PoW) mechanism to rate limit users or potential bots. In order for this to be effective, the PoW should be configured properly. The difficulty requirement can&amp;rsquo;t be too high, as it could cause accessibility issues on the client-side while at the same time, it shouldn&amp;rsquo;t be too low, as it wouldn&amp;rsquo;t offer proper protection against bots.
Malicious bots(the ones that wreak havoc), run native code which is capable of running in a multi-threaded context.</description></item><item><title>Say hello to mCaptcha</title><link>/blog/say-hello-to-mcaptcha/</link><pubDate>Wed, 26 May 2021 00:00:00 +0000</pubDate><guid>/blog/say-hello-to-mcaptcha/</guid><description>At mCaptcha, we believe in digital freedom and privacy and so we built an proof-of-work based CAPTCHA system that doesn&amp;rsquo;t track. Seriously, no tracking. But that isn&amp;rsquo;t the killer feature, our system doesn&amp;rsquo;t require the user to pick cars or ID sidewalks &amp;mdash; our system does it&amp;rsquo;s thing(usually at the click of a button) and gets out of the way.
Malicious bots(the ones that wreak havoc), run native code which is capable of running in a multi-threaded context.</description></item><item><title>Say hello to mCaptcha</title><link>/blog/say-hello-to-mcaptcha/</link><pubDate>Wed, 26 May 2021 00:00:00 +0000</pubDate><guid>/blog/say-hello-to-mcaptcha/</guid><description>At mCaptcha, we believe in digital freedom and privacy and so we built a proof-of-work based CAPTCHA system that doesn&amp;rsquo;t track. Seriously, no tracking. But that isn&amp;rsquo;t the killer feature, our system doesn&amp;rsquo;t require the user to pick cars or ID sidewalks &amp;mdash; our system does it&amp;rsquo;s thing(usually at the click of a button) and gets out of the way.
How does it work? mCaptcha uses SHA256 based proof-of-work(PoW) to rate limit users.</description></item></channel></rss>

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