EDITION OF SAT 19 SEP 2026
53 · TECHNOLOGY

Security researchers claim to have hacked into OpenAI using Anthropic's Claude

publishers 2articles 2first reported 18 Sep, 13:30 UTCdeveloping since 18 Sep · 3 editions

A team of three independent security researchers has claimed to have hacked into OpenAI employee accounts using Anthropic's Claude Opus 4.8 and 5, according to The Wall Street Journal, as reported by The Verge. The researchers, part of the group Hacktron, reportedly accessed OpenAI's GitHub repository, known as 'Monorepo,' which contains sensitive algorithmic information. According to Ars Technica, the researchers used Claude to reach an OpenAI employee account and gain access to sensitive GitHub data. The details of how the breach occurred and the full extent of the data accessed have not been fully disclosed. OpenAI has not yet publicly commented on the claims.

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