Codex Deleted Real Files. The Fix? A Flag You Didn't Set.
On July 9, 2026, OpenAI shipped GPT-5.6 Sol -- three model tiers, a new reasoning engine, and multi-agent capabilities. Within 72 hours, tech investor Matt Shumer reported that Sol had deleted almost all the files on his Mac. Developer Bruno Lemos said it wiped his production database. Joey Kudish lost files he did not ask the agent to touch. The pattern was identical every time: the agent was running in full-access mode without sandbox protections, it attempted to override the $HOME environment variable to create a temp directory, and the variable expansion failed -- turning a cleanup task into rm -rf against the user's actual home directory.
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Matt Shumer, July 10, 2026: "GPT-5.6-Sol just accidentally deleted almost ALL of my Mac's files. And this is why I trust Fable 1000x more." -- 5.5M views, 6K likes on X
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