Anthropic Files API is a technology platform tracked across 1 threat cluster and 2 intelligence report mentions on ThreatCluster. First observed March 18, 2026; most recent activity March 18, 2026.
A series of vulnerabilities in Anthropic's Claude.ai, collectively termed 'Claudy Day', have been identified, allowing attackers to exfiltrate sensitive user data and redirect users to malicious sites. The attack chain…