The DaniWeb Breach Hit 940,000 Developer and IT Professional Accounts

HEROIC analysts identified a breach connected to DaniWeb, a US-based online community for developers and IT professionals, that exposed 940,833 user records. The breach dates back to December 1, 2015, and the exposed data set includes email addresses, usernames, IP addresses, salt values, and passwords hashed with salted MD5.

Why the DaniWeb Breach Is a Real Risk for Technical Users

Salted MD5 is better than an unsalted hash, but it is still considered weak by modern standards and can be cracked at scale with the right hardware. Once cracked, these passwords are tied to real email addresses, usernames, and IP addresses. Because DaniWeb's audience is largely developers and IT professionals, a cracked password from this breach could give an attacker a foothold into work email, code repositories, or cloud accounts if that password was reused anywhere else.

What Was Exposed in the DaniWeb Breach

• Email addresses
• Usernames
• IP addresses
• Salt values
• Passwords (salted MD5 hashed)

Why This Matters for Developers and IT Professionals

Technical users often have access to more sensitive systems than the average internet user, including source code, servers, and client data. That makes a breach like this one especially valuable to attackers running credential stuffing campaigns, where stolen email and password combinations are automatically tested against other services. A single reused password from a 2015 DaniWeb account could open the door to a much more damaging compromise today.

How a Database Breach Like This Happens

In a typical database breach like this one, attackers exploit a vulnerability in the website's software or infrastructure to gain access to the backend database. From there, they export the full set of user records, including hashed passwords, salts, emails, usernames, and IP logs, and later distribute the file through hacking forums or private channels. Once that data is out, it tends to keep circulating for years, resurfacing periodically in new credential stuffing campaigns.

Check If You Are Affected

With over 940,000 records involved, this breach represents a substantial pool of credentials that could still be in active use by attackers. HEROIC's free breach scanner checks your email address against a database of more than 400 billion leaked records, including this one, so you can find out in seconds whether your information was exposed and secure any accounts using that same password.