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Fireworks AI says hackers stole account and billing data in two breaches

See how this story connects

Source: The RecordAlso reported by The Hacker News, The Register

AI infrastructure company Fireworks said cybercriminals stole account and billing information, secrets and AI-related data in two breaches, one first found on October 6 and a second on October 23 and 24, when a third-party cloud provider hosting its R&D machines was used to reach its development machines. It hired Palo Alto Networks Unit 42 to investigate, and said a “limited number of customer accounts” were affected and all had been notified. Notion said Fireworks told it on November 6 that malicious actors may have accessed customer data, and that Notion disconnected its systems from Fireworks and stopped serving open-weight models through it.

Why it matters

Fireworks customers had billing information, invoices, payment history and datasets taken, and Notion has stopped serving open-weight models through Fireworks.

When
9 Nov 2026
ID
WTA-N-2026-0806
Who
Fireworks AI, Palo Alto Networks Unit 42, Notion
System
Fireworks AI’s development machines, reached through a third-party cloud provider hosting its R&D machines
Operator
Fireworks AI
Type
two breaches, found on 6 October and on 23 and 24 October 2026, in which account and billing information, secrets and AI-related data were stolen
Status
Palo Alto Networks Unit 42 hired to investigate; affected customers notified; disclosed by Fireworks AI, through The Record · Incident ledger

Summary written with AI by wheresthe.ai, from The Record and the reporting credited above. Checked against the source on 10 Nov 2026.

Read the original at The Record

Source copy: saved on 10 Nov 2026 to check this story and not republished, because the text belongs to its publisher. Also held by the Internet Archive.

Next stop on this Storyline: Elsewhere: InternationalNotion discloses Fireworks AI security incident affecting fewer than 1% of workspaces

Cite this story

WTA-N-2026-0806: “Fireworks AI says hackers stole account and billing data in two breaches.” wheresthe.ai, 9 Nov 2026. https://wheresthe.ai/d/us-ca-fireworks-ai-says-hackers-stole-account-and-billing-da-2026-11/ (source: The Record).

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