The Hacker News AI Security · September 8, 2026

ChatGPT research finds a cross-account channel through shared package infrastructure

Why it matters

Check Point demonstrated cross-account communication through a shared package service reachable by separate ChatGPT execution environments, including a Gmail-data proof of concept. The researchers say OpenAI confirmed that the implicated Artifactory instance had been decommissioned.

My takeaway: Test tenant isolation across every shared internal service, not just direct container networking. Scope connector access and require meaningful authorization for sensitive actions initiated from untrusted conversation content.
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