
Fireworks AI, the inference infrastructure provider behind several of Notion's AI features, disclosed in October that attackers accessed its environment through a compromised third-party cloud provider. Cybersecurity news on this one escalated fast: what started as "test data only" reassurances turned into confirmed exposure of billing information, model weights, datasets, and API tokens, and Notion has now confirmed its own customers were affected.
That makes Notion a third party to its customers, Fireworks a fourth party, and the still-unnamed cloud provider a fifth, a textbook case of how deep AI vendor dependencies actually run. Jess and Jake break down what "zero data retention" really means in practice, why product features can create contractual carve-outs even inside a ZDR agreement, and why most vendor risk programs only assess their direct vendors, missing the fourth and fifth parties that may already hold their data.
Sources: Notion Security Advisory: https://www.notion.com/security/advisories/security-incident-involving-a-third-party-ai-vendor Fireworks AI Security Bulletin (October 2026): https://fireworks.ai/security/bulletins/october-2026-security-incident Fireworks AI Security Bulletin Update: https://fireworks.ai/security/bulletins/october-2026-security-incident-update
Discord: https://discord.gg/wYJnTpczV
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