HEROIC Researchers Link euphonynet.be to 2,643 Leaked Passwords

HEROIC researchers linked a combolist uploaded to Telegram in June 2026 to 2,643 records tied to euphonynet.be. The file paired email addresses with plaintext passwords and the login URLs they were used on, packaging a small but working set of stolen credentials for anyone who downloads it.

Why This euphonynet.be Leak Is Dangerous

The passwords in this file were stored and shared in plaintext, meaning there is no encryption for an attacker to break through before using them. Anyone who gets a copy can immediately try each email and password pair on other websites, with no cracking or specialized tools required.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated login URLs

Why This Matters

Even a leak of a few thousand records gives attackers enough material for credential stuffing, where stolen email and password pairs are automatically tested across banking, email, and shopping sites. Anyone who reused a password from this leak elsewhere is now at risk of account takeover, which can lead directly to financial fraud and identity theft.

How This Combolist Was Assembled

A combolist is a compiled file of email or username and password pairs, usually gathered from older breaches, malware infections, and other leaked sources rather than one single hack. This one was distributed through Telegram, a common venue for combolists to circulate before wider copies appear on dark web forums.

Check If You Are Affected

If you have ever used an email address linked to euphonynet.be, it is worth checking whether your credentials appear in this leak. HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records, including this combolist, so you can see your exposure right away.