Black Hat World

On June 23, 2014, Black Hat World, a long-running internet forum focused on search engine optimization and online marketing tactics, suffered a data breach. According to our investigation team, attackers took a database containing records for 773,993 accounts, of which 773,664 included email addresses. The stolen data was later circulated as a MySQL database script, meaning the forum's user table was dumped in a format that made the contents easy to read and share. No individual or group has claimed responsibility for the breach.

Limited public reporting: As of September 25, 2026, detailed company notices or major news coverage for this listing were limited in sources reviewed. The facts below rely primarily on the indexed fields plus any secondary sources cited.

What Information Was Compromised?

Our analysis found the following data types in this breach: email addresses, passwords, forum nicknames or usernames, ICQ instant messenger identities, and website entries.

Secondary breach listings, including Mozilla Monitor, also report that the exposed records contained dates of birth, IP addresses, and records of website activity.

Not every individual is affected by every type of data listed here.

What Are the Potential Risks for Affected Individuals?

The most immediate risk involves passwords. Anyone who used the same password on Black Hat World as on email, banking, social media, or shopping accounts could see those accounts targeted through credential stuffing, an attack where criminals replay leaked username and password pairs against other websites until one works.

The email addresses in the dump also support phishing. Attackers can reference the forum by name to make fraudulent messages appear more convincing, and the additional details reported by secondary listings, such as dates of birth and usernames, give scammers more material for impersonation attempts.

Because the breach dates back more than a decade, the passwords themselves may be old. That does not eliminate the risk, since many people reuse passwords for years across multiple sites.

What Should You Do If You Were Affected?

If you had an account on Black Hat World around 2014, take these steps:

Change your password on Black Hat World if the account still exists, and change it anywhere else you reused the same password.

Check the security settings on your primary email account and enable two-factor authentication wherever it is offered.

Watch for phishing emails that mention the forum, SEO tools, or account verification, and avoid clicking links in unsolicited messages.

Review recent login activity on accounts you consider sensitive, such as email and banking, and report anything unfamiliar.