October crypto-tracker hack: Access cracked, law enforcement tokens packed

Hackers stole usernames, password hashes and live tokens during an October cyber-attack on blockchain analysis firm Chainalysis. The company, which regularly assists police investigations worldwide, previously confirmed that intruders had accessed names, email addresses and organisation roles. Chainalysis has now taken several services offline after detecting abnormal activity, including Reactor, a blockchain investigation tool used by international law enforcement. Other affected systems include the Data Solutions threat intelligence platform and the KYT anti-money laundering service. Users have been urged to change their passwords on any platforms sharing the same details, although Chainalysis noted its own reset system is currently down.