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Breach occurred 2013-05-29Verifiedyouhack.ru
What happened
In May 2013, the Russian-language hacking forum YouHack suffered a data breach that was later redistributed as part of a larger corpus of data. The breach exposed 107k forum members' email addresses, usernames, IP addresses and MD5 password hashes, most of which were unsalted. Forum posts also contained email address and password pairs belonging to other victims, bringing the total to 7.2M unique email addresses.
Data exposed
Frequently asked questions
The YouHack data breach occurred on May 29, 2013. It was added to Have I Been Pwned's breach catalog on November 11, 2026.
7,160,849 accounts were affected by the YouHack data breach, according to Have I Been Pwned's records.
The YouHack breach exposed the following data types: Email addresses, IP addresses, Passwords, Usernames.
Yes. Have I Been Pwned has verified the YouHack 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 YouHack 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.
Check your email →Other breaches exposing Email addresses
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