How a Telegram Combolist Leaked 5,446 Freenet.de Logins

In May 2026, HEROIC analysts found a combolist file targeting freenet.de accounts uploaded to a Telegram channel by an anonymous user. The file contained 5,446 records made up of email addresses, plaintext passwords, and the URLs of the login pages those credentials were captured from.

How This Freenet.de Combolist Came Together

A targeted combolist like this one is usually assembled by pulling matching email and password pairs out of larger breach collections or stealer logs and filtering them down to accounts on one specific service, in this case freenet.de. That focus makes the list more useful to an attacker, since every entry is already confirmed to belong to the same platform rather than a random mix of unrelated sites.

What Was Exposed in the Freenet.de Leak

• Email addresses
• Plaintext passwords
• URLs of the login pages those credentials belong to

Why a Targeted Leak Like This Matters

Because every record here is tied to the same service, an attacker can run these 5,446 email and password pairs directly against freenet.de without wasting time on logins that will not work. If any of these users reused their freenet.de password on email, banking, or shopping sites, those accounts are exposed too. This is the core mechanism behind credential stuffing, account takeover, and the identity theft that often follows.

How Attackers Build Service-Specific Combolists

To build a list focused on one platform, attackers typically start with a broad pool of leaked credentials from stealer logs or older breaches, then filter for entries whose login URL matches the target service. The result is a smaller but more reliable file, exactly like the one that surfaced here targeting freenet.de users on Telegram.

Check If You Are Affected

If you have a freenet.de account or think your email could be part of this leak or any other breach, HEROIC's free breach scanner checks it against a database of more than 400 billion leaked records. Run a scan now and update your password if it turns up.