OpenCode confirms breach, stolen customer API keys already incurring charges

jedisct1 · x · 2026-10-18

Coding tool OpenCode has confirmed a security breach: a notification to customers says unauthorized access hit a legacy system being decommissioned, potentially exposing third-party provider API keys (e.g. OpenAI, Anthropic) saved in workspaces. Some users report stolen keys already running up charges. OpenCode is telling customers to revoke and replace keys via provider dashboards, update any applications using them, and review recent usage for unexpected activity.

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