Researchers used Anthropic’s Claude Opus 5 to help weaponize an image-decoder vulnerability, compromise OpenAI’s community forum, take over employees’ ChatGPT and Codex accounts, and reach an internal source-code repository. The July 25, 2026 operation by Hacktron linked remote code execution in Discourse’s image-processing stack to a flaw in OpenAI’s single sign-on, showing how a breach […]
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