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Fireworks AI Confirms Wider Breach Affecting Customer Datasets, Model Weights and Notion AI Chats

The Hacker News
Data Breach

Overview

Fireworks AI has confirmed a broader data breach following an initial security incident reported last month. The company announced on October 10, 2026, that unauthorized access was found affecting customer account and billing information, along with sensitive data including datasets and model weights for a limited number of accounts. This breach also involved private chats from Notion AI. The incident raises concerns over the security of user data and the potential misuse of sensitive information. Fireworks AI is now working to address the situation and protect affected users.

Key Takeaways

  • Affected Systems: Customer account information, billing information, datasets, model weights, Notion AI chats
  • Timeline: Disclosed on October 10, 2026

Original Article Summary

Fireworks AI disclosed on Monday that its investigation into a security incident first reported early last month uncovered further malicious activity, affecting account and billing information, alongside secrets, datasets, and incomplete models for a "limited set of accounts." In a notice published on October 10, 2026, the company said it detected unauthorized use of internal Fireworks

Impact

Customer account information, billing information, datasets, model weights, Notion AI chats

Exploitation Status

The exploitation status is currently unknown. Monitor vendor advisories and security bulletins for updates.

Timeline

Disclosed on October 10, 2026

Remediation

Not specified

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to Data Breach.

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