174K accounts from PHP Freaks (phpfreaks.com) were exposed in this breach. Besides email addresses, it included passwords, which makes it a high-risk breach.
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Dates of birthEmail addressesIP addressesPasswordsUsernamesWebsite activity
In October 2015, the PHP discussion board PHP Freaks was hacked and 173k user accounts were publicly leaked. The breach included multiple personal data attributes as well as salted and hashed passwords.
Source: Have I Been Pwned (CC BY 4.0)