Chainalysis: user data exposed

Chainalysis

Chainalysis user data exposed in cyber breach, all users affected

Do this now

Check Chainalysis's advisory for a fix and restrict access to your Chainalysis accounts meanwhile, then reset passwords for all Chainalysis users.

First seen: 5 Nov 2026
Last update: 5 Nov 2026, 10:17 UTC
Source: news

Check this repository for exposure to one security incident from pwned.coffee. Report first, change nothing until I say so.

## Chainalysis: user data exposed
Severity: unknown. Patch status: fix status unknown.
Affected: Chainalysis

Chainalysis user data exposed in cyber breach, all users affected

## Steps
1. Search the repo, its CI and infra config for Chainalysis. If present, report the version in use and whether it's affected.
2. No source names a fix yet; check the vendor advisory. Until one ships: restrict network access to it.

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://therecord.media/chainalysis-all-users-hit-by-agentic-cyberattack https://thehackernews.com/2026/11/chainalysis-breach-exposes-all-users.html
https://pwned.coffee/i/chainalysis-user-data-exposed

Receipt

Exploitation: No known exploitation
Score: No CVSS published yet: severity unknown.
Last checked: 6 Nov 2026, 12:18 UTC

Sources: KEV – CVE record – Vendor –

Sources

Follow on X

Totalone coffee