Chainalysis Starts Reopening Compliance Tools Behind IP Allowlists in Sixth Breach Update

Chainalysis began restoring access to its compliance tools on Wednesday night, gating them behind IP allowlists in the sixth update since a breach that exposed password hashes for all users. Customers who have not yet submitted trusted IP addresses must do so before regaining access, and every user is required to set a new password. The blockchain analytics firm disclosed that the incident compromised the full set of user password hashes, raising the stakes for clients ranging from exchanges to government agencies that rely on its transaction-monitoring products. The allowlist requirement adds a network-level control on top of credential resets, signaling a broader security overhaul rather than a simple patch. What to watch next is how quickly customers complete the IP registration and password reset steps, and whether Chainalysis extends the same controls to other products beyond its compliance suite.