Fireworks AI Breach Exposes Notion AI Chat Transcripts
A security breach at Fireworks AI, a third-party inference and classification provider, has resulted in the exposure of unattributable Notion AI chat transcripts affecting less than 1% of Notion workspaces. Malicious actors accessed potential customer data, confirmed by Fireworks on November 8, 2026, including chat sessions used for Notion's AI Insights feature. While the exposed data lacked direct user or workspace identifiers, the incident highlights significant supply chain risks inherent in delegating AI inference and classification workloads to external vendors.