Act
active
Active Exploitation of BTCPay Server Flaw Drains Hot Wallets
- Engineer — Act: Active exploitation confirmed with real financial losses; update BTCPay Server to the latest version (anything beyond 2.4.1, released July 23, 2026) immediately on any self-hosted instances, and audit hot wallet balances for unauthorized withdrawals.
- SOC/IR — Plan: Exploitation is confirmed but this summary provides no IOCs, TTPs, or log artifacts to hunt on; inventory any BTCPay Server deployments in the estate, check running versions against the vulnerable ≤2.4.1 threshold, and flag for the engineer team — revisit if technical indicators surface.
- Leader — Skip
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