// UNCLASSIFIED // CLEARED FOR PUBLIC RELEASE //
FILE BRC-newsDTG 0600Z
Breach Record

OpenAI

DISCLOSED 2026-09-19 · UNKNOWN

Researchers used Claude Opus 5 to exploit a forum flaw and chain it with an OpenAI SSO weakness, reaching internal systems in under 72 hours.

The record

What we know

Disclosed
2026-09-19
Sector
technology
Country
United States
Domain
openai.com
Sources

Cited reporting

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