<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[Claude Mythos Has Found 271 Zero-Days in Firefox]]></title><description><![CDATA[<p>Claude Mythos Has Found 271 Zero-Days in Firefox</p><p>That’s a lot. No, it’s an extraordinary number:<br />Since February, the Firefox team has been working around the clock using frontie... <a href="https://www.schneier.com/blog/archives/2026/04/claude-mythos-has-found-271-zero-days-in-firefox.html" rel="nofollow noopener noreferrer"><span>https://www.</span><span>schneier.com/blog/archives/202</span><span>6/04/claude-mythos-has-found-271-zero-days-in-firefox.html</span></a></p><p> <a href="https://burn.capital/tags/Uncategorized" rel="tag">#<span>Uncategorized</span></a> <a href="https://burn.capital/tags/zero" rel="tag">#<span>zero</span></a>-day <a href="https://burn.capital/tags/Firefox" rel="tag">#<span>Firefox</span></a> <a href="https://burn.capital/tags/AI" rel="tag">#<span>AI</span></a></p>]]></description><link>https://board.circlewithadot.net/topic/271e88c2-aacc-4560-84bd-6bd919eb009f/claude-mythos-has-found-271-zero-days-in-firefox</link><generator>RSS for Node</generator><lastBuildDate>Fri, 15 May 2026 02:43:33 GMT</lastBuildDate><atom:link href="https://board.circlewithadot.net/topic/271e88c2-aacc-4560-84bd-6bd919eb009f.rss" rel="self" type="application/rss+xml"/><pubDate>Wed, 29 Apr 2026 11:00:04 GMT</pubDate><ttl>60</ttl></channel></rss>