Chainalysis Breach Disclosure Widens in One Week From Names to Live Tokens

TLDR Chainalysis began restoring KYT and Address Screening access in phases on Friday, Nov. 6. The firm now says names, usernames, password hashes and live tokens for all users were exposed. Its first notice on Oct. 30 said only non-sensitive data like names and emails was accessed. All users must reset passwords and rotate API keys before using the services again. Reactor and Data Solutions remain offline while the company works with outside security experts. Chainalysis has started bringing its compliance screening tools back online after a cyberattack that the company now says reached further than it first reported. The blockchain analytics firm said on Friday that it is restoring access to its KYT and Address Screening products in phases.

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