Chainalysis disclosed that a breach exposed usernames, password hashes and live authentication tokens for every customer, prompting it to take its login portal, Reactor, Data Solutions, KYT tools and address screening products offline. The company says it found no evidence that investigative graph data or blockchain attribution records were accessed or altered, but is requiring all users to reset passwords and rotate API keys before regaining access.
it.slashdot.org
· 2026-11-06
Chainalysis has disclosed that a cyberattack on its systems compromised usernames, password hashes and live authentication tokens belonging to every customer, expanding earlier reports that only limited identity metadata was affected. The blockchain analytics firm, whose clients include law enforcement and financial institutions, said attackers used 'offensive agentic' AI techniques and an on-path (man-in-the-middle) attack to intercept the data. In response, Chainalysis took its login portal, Reactor, Data Solutions, KYT tools and address screening products offline and asked customers to supply trusted IP addresses.
bleepingcomputer.com
· 2026-11-06
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