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Breach occurred 2026-03-26Verifiedbreachforums.bf
What happened
In March 2026, a breach of one of the many iterations of the BreachForums hacking forum known as "Version 5" was publicly disclosed. The incident exposed 340k unique email addresses along with usernames and argon2 password hashes.
Data exposed
Frequently asked questions
The BreachForums Version 5 data breach occurred on March 26, 2026. It was added to Have I Been Pwned's breach catalog on March 27, 2026.
339,778 accounts were affected by the BreachForums Version 5 data breach, according to Have I Been Pwned's records.
The BreachForums Version 5 breach exposed the following data types: Email addresses, Passwords, Usernames.
Yes. Have I Been Pwned has verified the BreachForums Version 5 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 BreachForums Version 5 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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