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Data breach

Chainalysis breach exposes all users’ credentials

First reported · Last reported · 28 related reports

An external attacker gained access to Chainalysis’s internal systems and tools, exposing customer names, email addresses, user IDs and other information. The company disclosed the incident on 30 October, notified customers and began an investigation with external experts, initially saying it had found no evidence of unauthorised access to credentials or session tokens. It subsequently confirmed that all users’ credentials and active tokens had been exposed, as well as password hashes and some customers’ passwords. Major services were disrupted, and service restoration began on 6 November.

Key facts

Affected organisation
Chainalysis
Incident type
Data breach
Occurred / detected
Not confirmed
Scale of damage
Exposure of all users’ credentials and active tokens
Cause / method
Unauthorised access to internal systems and tools by an external attacker
Location
United States

If your data was exposed

Exposed dataNameEmailUsernamePassword

  1. Change your password, and also change it on any other site where you use the same one. Turn on two-factor authentication if available.
  2. Don’t tap links in texts, calls or emails that mention this incident and offer compensation, refunds or breach checks. Check directly on the organisation’s official website or app.

Timeline

  1. Chainalysis disclosed the security incident, notified customers and began an investigation with external experts.
  2. The company confirmed the exposure of customer names, email addresses, user IDs and roles within organisations, but said it had found no evidence of unauthorised access to credentials or session tokens.
  3. The exposure of all customers’ credentials and active tokens and the disruption of major services became known, and service restoration began.
  4. The exposure of password hashes and some customers’ passwords came to light, alongside indications of abnormal access to the cryptocurrency transaction monitoring system.
  5. Service disruptions continued for two products.

28 related reports

The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organisation’s official statements for accurate details.