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Breach occurred 2013-02-28Verifiedtumblr.com
What happened
In early 2013, tumblr suffered a data breach which resulted in the exposure of over 65 million accounts. The data was later put up for sale on a dark market website and included email addresses and passwords stored as salted SHA1 hashes.
Data exposed
Frequently asked questions
The tumblr data breach occurred on February 28, 2013. It was added to Have I Been Pwned's breach catalog on May 29, 2016.
65,469,298 accounts were affected by the tumblr data breach, according to Have I Been Pwned's records.
The tumblr breach exposed the following data types: Email addresses, Passwords.
Yes. Have I Been Pwned has verified the tumblr breach, meaning there's confirmed evidence the exposed data is genuine and tied to real accounts.
Use KazaSec's free Email Breach Checker (/tools/breach-check) to check whether a specific email address has surfaced in the tumblr breach, or any other known breach — the tool never stores what you search.
Our free Email Breach Checker tells you whether a specific email address has surfaced in this breach — or any other known breach — without ever storing what you search.
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