Notion says Fireworks AI breach exposed some Notion AI chat transcripts

Notion published a notice that a security incident at its vendor Fireworks AI, which it used for inference and classification jobs, may have exposed some Notion AI chat transcripts. Notion says Fireworks told it on November 6 that malicious actors may have reached customer data and confirmed the dataset two days later. Notion had already disconnected from Fireworks, deleted the data it held there and halted training runs. Fewer than 1% of workspaces may be affected. The exposed transcripts carried no user or workspace labels and contained no tool call results. Notion disabled its Insights feature and stopped serving open-weight models through Fireworks. Affected workspace owners were contacted and can review the data from their workspace sidebar.