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Sunday, November 15, 2026

Fireworks AI breach exposes Notion customer chat transcripts

Technology Thursday, November 12, 2026 - Updated Nov 13, 2026 10:44

Uber is notifying thousands of drivers that their personal and driver licence information was stolen in the October breach at its provider Fireworks AI, the same incident in which hackers took Notion AI customer chat transcripts.

Why it matters: The breach shows how one AI infrastructure provider's compromise spills into its customers' products: Notion disconnected from Fireworks on November 3 and deleted the data stored in its systems, and this is Fireworks' second breach in as many months.

Data as of TechCrunch report of November 12, 2026, read in full, reporting Fireworks AI's latest security advisory and Notion's own disclosure of the same week. Updated November 13, 2026 with TechCrunch reporting of the same day, read in full, on Uber's breach notices filed with state attorneys general; the state counts are from those notices as seen by TechCrunch, and Uber did not give a total number affected. Developing item.

Latest. Uber is notifying thousands of its drivers that their personal and driver licence information was stolen in the October breach at Fireworks AI, TechCrunch reported on Friday. Uber said the provider notified it on October 9 that hackers had stolen internal credentials and used them to reach Uber data held by the provider; notices filed with state attorneys general put the affected counts at 2,567 people in Massachusetts, 3,430 in South Carolina and 1,873 in Rhode Island, with Illinois and California counts not yet stated, and the total expected to rise as more notices are filed. It is Uber’s second known breach this year, after an extortion gang took credit for stealing data from its Uber Freight unit.

An attacker breached Fireworks AI’s cloud provider to gain access to a Fireworks development system, taking customers’ billing information and some datasets, the company confirmed in a security advisory reported by TechCrunch on Thursday. Notion, a confirmed affected customer, said the hackers took chat transcripts of Notion AI customers who used its Insights feature, affecting around 1 percent of its customers, though much of the data was unattributable; Notion said Fireworks alerted it to the incident, and that it disconnected its systems from Fireworks on November 3, deleted the data stored there and stopped all connectivity between the two. Fireworks said it believes the hackers are financially motivated, focused on selling access tokens for large language models, and the incident is its second breach in as many months after one in October.

Sources

  1. Cyberattack on Fireworks AI allowed hackers to access Notion customers' chat transcripts - TechCrunch - 2026-11-12
  2. Uber confirms hackers stole thousands of drivers' license information in data breach - TechCrunch - 2026-11-13