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Chainalysis says attack exposed credentials and live tokens for all customers

Chainalysis says a recent attack on its systems and internal tools exposed credentials and live tokens for all customers.

Written by a model from the sources below. Verify against them.

Sources4Confirmed
Vendor
Chainalysis
Status
Confirmed
Disclosed
Data taken
Names, Email addresses, Password hashes, Tokens and keys

Summary

The item reports this claim from BleepingComputer and does not describe the scope or the attacker.

What to do

  • Change your password there and anywhere you reused it, and turn on multi-factor authentication

    For password hashes
  • Rotate API keys and tokens you gave it, and review the OAuth apps and integrations connected to it

    For tokens and keys
  • Expect phishing that uses this breach; verify messages that mention it

    For email addresses
  • Rotate any Chainalysis API keys, tokens, and passwords now.

  • Review recent activity on Chainalysis accounts and integrations for unexpected access.

  • Follow Chainalysis's official notices for confirmed scope and remediation steps.

  • Enable multi-factor authentication on accounts that connect to Chainalysis.

Timeline

  1. Made public by BleepingComputer on Bluesky
  2. Confirmed by Chainalysis

    BleepingComputer on Bluesky: “"On Monday, we discovered certain customer information including names, usernames, password hashes and live tokens for all Chainalysis users were exposed to a…”

    1 day
  3. First seen by cve.now1 day
  4. Record last updated

What was taken

TakenPer the source
Names, Email addressesBleepingComputer on Bluesky: “This follows the company's disclosure last Friday that attackers using AI tools accessed customers' names, email addresses, user IDs, and organizational role l…”
Password hashesBleepingComputer on Bluesky: “"On Monday, we discovered certain customer information including names, usernames, password hashes and live tokens for all Chainalysis users were exposed to a…”
Tokens and keysBleepingComputer on Bluesky: “Blockchain intelligence firm Chainalysis says a recent attack on its systems and internal tools has exposed credentials and live tokens for all customers.”

Evidence 4

  1. Press
    BleepingComputer on Bluesky
    “Blockchain intelligence firm Chainalysis says a recent attack on its systems and internal tools has exposed credentials and live tokens for all customers.”
  2. Social
    Mastodon
    “chainalysis-says-hackers-stole-credentials-and-tokens-for-all-of-its-customers”
    +1 more: Mastodon
  3. Social
    Hacker News
    “Chainalysis says breach exposed credentials for all customers”
  4. Social
    Bluesky
    “Chainalysis Breach Exposes All Users' Credentials, Forces Shutdown of Key Services”

Corrections

None so far.

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Questions about the Chainalysis breach

Was Chainalysis breached?

Yes. Chainalysis says so: “"On Monday, we discovered certain customer information including names, usernames, password hashes and live tokens for all Chainalysis users were exposed to a malicious actor," it said in a Wednesday update.” (BleepingComputer on Bluesky).

What data was exposed?

Names, Email addresses, Password hashes, Tokens and keys.

What should Chainalysis customers do?

Change your password there and anywhere you reused it, and turn on multi-factor authentication. Rotate API keys and tokens you gave it, and review the OAuth apps and integrations connected to it. Expect phishing that uses this breach; verify messages that mention it. Rotate any Chainalysis API keys, tokens, and passwords now. Review recent activity on Chainalysis accounts and integrations for unexpected access. Follow Chainalysis's official notices for confirmed scope and remediation steps. Enable multi-factor authentication on accounts that connect to Chainalysis.