Fireworks AI says cloud-provider breach exposed customer billing data and model weights

Fireworks AI, the Nvidia-backed model infrastructure provider led by CEO Lin Qiao, notified customers on November 9th that an October 24th intrusion through a cloud provider reached development machines and exposed customer billing data and, for a limited set of accounts, secrets, datasets and incomplete model weights. Bloomberg reported it was the company's second known security breach in weeks. Fireworks sells companies a place to build specialized models around proprietary data, so the exposure of datasets and partial model weights puts sensitive customer model work within reach of an intruder.

Fireworks AI says cloud-provider breach exposed customer billing data and model weights Fireworks said an October 24th intrusion through a cloud provider reached development machines, affecting billing data and, for some accounts, secrets, datasets and incomplete model weights. By RuntimeWire Staff https://runtimewire.com/author/runtimewire-staff · Published · Updated Primary source: Bloomberg Technology https://www.bloomberg.com/news/articles/2026-11-09/nvidia-backed-fireworks-ai-notifies-customers-of-its-second-hack-in-weeks Why it matters Fireworks sells companies a place to build specialized models around proprietary data. The November 9th disclosure says that material, including datasets and incomplete model weights for a limited set of accounts, was within reach of an intruder who entered through a cloud provider. Secrets can be rotated quickly. Customer confidence in where sensitive model work lives takes longer to rebuild. Fireworks AI, the model infrastructure provider co-founded by CEO Lin Qiao, told customers on November 9th that data was accessed during an October 24th intrusion through a cloud provider. It was Fireworks' second known security breach in weeks, Bloomberg reported https://www.bloomberg.com/news/articles/2026-11-09/nvidia-backed-fireworks-ai-notifies-customers-of-its-second-hack-in-weeks?ref=runtimewire .… When you purchase through links in our articles, we may earn a small commission https://runtimewire.com/affiliate-monetization-standards . This doesn’t affect our editorial independence.