Northflank breach exposes stored OpenAI and Anthropic API keys
11/01/2026 — 11/01, 06:16·1 sources (all)·1 reports (all)
Key takeaways
- Northflank and Chainalysis separately disclosed intrusions on October 31. Northflank said stored AI API keys, including OpenAI and Anthropic…
Background & analysis
On October 31, 2026, Northflank and Chainalysis separately disclosed breaches affecting developers and data-driven teams. Northflank, a platform for hosting cloud applications, said the incident resulted in the unauthorized use of AI API keys stored on its platform, including keys for services such as OpenAI and Anthropic. The company has asked customers to rotate all API keys and environment variables held on the platform. Chainalysis, a blockchain analytics firm, reported that customer names, email addresses, user IDs, and organizational roles were exposed, and described the attack as having employed offensive agentic techniques. No additional details about the investigation or remediation were available in the material reviewed.
AI-generated from 1 reports · updated 1 day ago
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Reports on this story headlines open the original
Northflank and Chainalysis both disclosed breaches on October 31, according to a DEV Community writeup. Northflank said stored AI API keys, including keys for OpenAI and Anthropic, were used without authorization and told customers to rotate every secret and environment variable on the platform; Chainalysis exposed customer names, emails, user IDs and org roles, describing the attack as using offensive agentic techniques.
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