1.13M accounts from DaniWeb (daniweb.com) were exposed in this breach. Besides email addresses, it included passwords, which makes it a high-risk breach.
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Email addressesIP addressesPasswords
In late 2015, the technology and social site DaniWeb suffered a data breach. The attack resulted in the disclosure of 1.1 million accounts including email and IP addresses which were also accompanied by salted MD5 hashes of passwords. However, DaniWeb have advised that "the breached password hashes and salts are incorrect" and that they have since switched to new infrastructure and software.
Source: Have I Been Pwned (CC BY 4.0)