Chainalysis discloses cyberattack exposing customer names and emails

The blockchain analytics firm says an attacker reached some user data but not investigation materials or passwords Chainalysis, a company whose business is following the money on public blockchains, has disclosed that someone got into its own systems. The firm said an attacker accessed certain customer records, including names, email addresses, user IDs and organization role labels. Investigative data and passwords were not touched, according to the company. For a firm built on tracing other people’s digital footprints, the reversal carries some irony. What the attacker got, and what they didn’t Chainalysis disclosed the incident on October 30, 2026. It said unauthorized parties reached certain internal systems and tools. The attack method is the interesting part. The company attributed the intrusion to what it called “offensive agentic techniques”, meaning AI-driven methods used by external actors. Agentic AI refers to software that can carry out multi-step tasks with limited human direction. The exposed data falls into four buckets: User IDs Full names Email addresses Organization role labels The company drew a firm line around what it says stayed safe. Investigation content, suc...