Tag Archives: claude

Mozilla Says Claude Mythos Helped Find 271 Firefox Bugs

Mozilla says its “zero-days are numbered” after identifying 271 security‑sensitive Firefox vulnerabilities using Anthropic’s Claude Mythos Preview model.In security terms, a zero‑day is a vulnerability that developers do not yet know about and therefore have had “zero days” to fix. Mozilla caught this slate of vulnerabilities by having Claude Mythos …

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Claude Code's Own Full Source Code Leaked

On Tuesday, a security researcher named Chaofan Shou revealed on X that he had found a 59.8MB JavaScript source map file in a public release of Anthropic’s Claude Code.This file is intended for internal debugging purposes and helps to associate compiled, public code with the original source code. With it, …

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Anthropic Blocks OpenAI From Using Claude to Test GPT-5

Anthropic has cut off OpenAI’s API access to its Claude models after determining that OpenAI violated Anthropic’s terms of service. According to Anthropic, OpenAI used Anthropic’s developer APIs internally to test and compare Claude’s capabilities in tasks like coding and safety. These tests were part of OpenAI’s own work on …

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