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tumblr data breach — are you affected?

Tumblr was breached in early 2013, exposing over 65 million accounts. The data surfaced in 2016 on a dark market website and includes email addresses and salted SHA-1 password hashes. It is an old leak, but credentials from it are still tried against other services.

Key facts
Verified
Breach date
28 February 2013
Accounts affected
65,469,298
Added to catalogue
29 May 2016
Website
tumblr.com

Data exposed

  • Passwords, high risk
  • Email addresses, lower risk

Colour shows how damaging the data is if misused.Credentials, ID and bank dataContact and personal detailsOther profile data

What this means for you

Based on the types of data in this breach, in order of importance.

  • Change the password and turn on two-factor authentication

    Passwords or password hashes were part of this breach. Change the password on this service and on every site where you reused it, use a unique password for each account from a password manager, and enable two-factor authentication. You can test a password without sending it anywhere with the password checker.

  • Expect more targeted phishing

    Your email address ties you to this service, which is enough for a believable message such as a fake account warning. Check the sender and the web address before you sign in, and go to the site directly instead of using links in email.

Check your own email address

Run a free self-assessment for an email address you own. VINDICIS checks it against infostealer logs and several public breach sources and shows a summary in seconds.

Built for your own addresses. It is not a tool to look up other people.

Run a free self-assessmentCheck a password

Related breaches

Breaches that exposed similar kinds of data.

Frequently asked questions

Was my data in the tumblr breach?

Only a check of your own address can tell. If you had an account with tumblr around 2013, assume it might be. Run the free self-assessment with an email address you own: VINDICIS checks it against several public breach sources and shows a summary in seconds. It is built for your own addresses, not for looking up other people.

What information was exposed in the tumblr breach?

According to the Have I Been Pwned catalogue, the tumblr breach affected 65,469,298 accounts and exposed: Passwords, Email addresses. The incident dates from 28 February 2013.

What should I do if I had a tumblr account?

Change your tumblr password and the password of every account that shared it, and turn on two-factor authentication. Treat unexpected emails, texts or letters that mention tumblr with suspicion, and delete the account if you no longer use it.

Is it safe to check my email address on VINDICIS?

Yes. The free scan is not stored or logged, results stay in memory for four hours at most, and your browser only talks to this site. The password checker hashes locally and sends only five characters of the hash, so the password never leaves your device.