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FIRST SEEN 29D AGO
ANTHRPSHIPS

Anthropic's Mythos finds high-severity security bugs in Firefox

Mozilla security researchers report that Anthropic's Mythos tool has uncovered a significant number of high-severity vulnerabilities in Firefox. The findings highlight AI-assisted security research as a powerful method for surfacing critical bugs in major software.

Sources
4
X mentions
21k
First seen
29Dago
Velocity
+8%/6h
CONTRIBUTING SOURCES
4 ARTICLES
  1. TechCrunch AI29D AGO
    techcrunch.com/2026/05/07/how-anthropics-mythos-has-rewritten-firefoxs-approach-to-cybersecurity
  2. Simon Willison29D AGO
    simonwillison.net/2026/May/7/firefox-claude-mythos
  3. Ars Technica AI29D AGO
    arstechnica.com/information-technology/2026/05/mozilla-says-271-vulnerabilities-found-by-mythos-have-almost-no-false-positives
  4. X (Twitter)29D AGO
    x.com/AnthropicAI/status/2052466175540629965
X DISCOURSE
21k TOTAL · TOP 3
@AnthropicAI1H · 852.7K
Anthropic has confidentially submitted a draft S-1 registration statement to the Securities and Exchange Commission. Pending completion of SEC review, this gives us the option to pursue an initial public offering. Read more: https://t.co/onGZAhRLvD
@AnthropicAI13H · 1034.2K
RT @claudeai: Introducing Claude Opus 4.8: it builds on Opus 4.7 with sharper judgment, more honesty about its own progress, and the abilit…
@AnthropicAI2D · 906.7K
RT @claudeai: Introducing Claude Opus 4.8: it builds on Opus 4.7 with sharper judgment, more honesty about its own progress, and the abilit…