Fireworks breach exposed AI chat records of some Notion customers

Fireworks AI confirmed that attackers breached a development system after compromising its cloud provider, exposing data belonging to some customers. The incident affected Notion, whose AI chat transcripts were stolen, showing how attacks on technology suppliers can spill over to the companies and users relying on them.

Notion said around 1% of its customers were affected and that the transcripts came from people using its AI “Insights” feature. They may include text entered into or produced by the model, though much of the data could not be linked to specific customers. Notion disconnected from Fireworks on 3 November and deleted data held in its systems. Fireworks said the attackers appeared financially motivated and sought to sell access to AI model usage; this was its second security incident in as many months.