Chainalysis Confirms October Data Breach Exposes Customer Data
Current overview (not historical)
Blockchain analytics firm Chainalysis confirmed in October that it suffered an external cyberattack, resulting in the leak of customer names, email addresses, and organizational role labels. The company clarified that investigation data, authentication keys, and transaction outcomes were not accessed, and advised users to enable two-factor authentication to protect against abnormal password reset or login prompts.
Written with AI from the reporting · updated 10/31/2026
Expand the detailed fact route and sources
Story route
A station-by-station route from the first public evidence onward; every station carries its own evidence and uncertainty.
- 1Unclassified fact stationNov 1, 01:12single sourcereport-time onlyrevised
Chainalysis 数据泄露暴露客户姓名、邮箱与角色标签
Read original source ↗ CryptoSlateReplay this moment in the explorerEvidence & revisions · 1 source records
- Occurred (fact side):
- not recorded
- Published (valid side):
- Nov 1, 00:45
- First seen (known side):
- Nov 1, 01:12
Fact stationSingle source · one-sided claimRevisedReport-time onlyCopy may have been revised later; time replay is bounded. Layer labels group reading only, not causation between layers.
Uncertainty marks flag where to check the sources; they are not proven causation.
Report timeline
Explore every side through dated source reports.
- CryptoSlateRelated fact: single sourceFact occurrence time unverifiedSource report revisedChainalysis confirms unauthorized access to customer data in October breach
Report first recorded Nov 1, 01:12
Chainalysis disclosed that an external actor gained unauthorized access to its systems in October 2026, exposing customer names, email addresses, user IDs and organization role labels. The company stated no evidence was found of access to investigation content, authentication secrets, or transaction results, and is working with third-party cybersecurity experts to determine the full scope of affected records.
Read original source ↗
Event activity trend
- Latest comparable
- 3
- Comparable peak
- 10Nov 1, 02:00
- 24h change
- -49%
The chart compares consistently observed participants only. Hover or tap to inspect each hour; use arrow keys to move between observations.
Event discussion
Reader opinions are hosted on GitHub Discussions; posting requires a GitHub account. Comments are not verified facts.