OpenCode discloses breach from large-scale distillation attack hitting 1.4% of users

TheZachMueller · x · 2026-10-18

OpenCode disclosed a security breach last night caused by a large-scale distillation attack affecting 1.4% of OpenCode Console users. All affected users were notified via email this morning. With the incident ongoing, details are limited, but the team says it is working with Anthropic, OpenAI, and Google to remediate. A rare breach explicitly attributed to a distillation attack — worth watching for follow-up details.

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