Blockchain analytics company Chainalysis says an external actor gained unauthorized access to its systems and internal tools
Reported1 distinct origin, 0 independent.
Blockchain analytics company Chainalysis made public on 30 October that it had detected an external actor gaining unauthorized access to its systems and internal tools during October, gave no day for it, and said it had notified all customers and that the incident was not related to the Binance theft. Chainalysis said on 4 November that names, usernames, password hashes and live tokens of all its users had been exposed, that it took several products and its login page offline, and that it had no evidence that investigations data was accessed. It said it restored KYT, Address Screening and Reactor on 7 November and Data Solutions on 10 November (an update stamped 08:00 UTC), with every user required to reset passwords and rotate API keys; SecurityWeek reported the breach on 2 November. Nobody has named an actor.
- When
- 30 October 2026
- Where
- No fixed place, No single country
- What
- cyber, company
- Attribution
- Not attributed. Chainalysis named no attacker, and no government, court or examining company has named one.
- In the record
- Published 2026-11-11 01:43 UTC
Sources
- Evidence Chainalysis
Chainalysis detected an external actor ... to gain unauthorized access to Chainalysis systems and internal tools.
- Evidence SecurityWeek
History
- First recorded 11 Nov, 01:43 UTC, as reported (one origin only).
Cite or reuse
The War Record, "Blockchain analytics company Chainalysis says an external actor gained unauthorized access to its systems and internal tools", record ev-20261111-tqa1, version 1, https://thewarrecord.com/events/ev-20261111-tqa1/