One Telegram Upload, One File: MIXED COMBO Had 100,088 Login Pairs

A file going by the name MIXED COMBO surfaced on Telegram on 25-Mar-2025 and was picked up by HEROIC's dark web monitoring systems. It packages 100,088 email addresses, plaintext passwords, and matching URLs into a single ready-to-use list.

Why This Is Dangerous

The danger here is speed and scale. With emails, plaintext passwords, and URLs already matched up, an attacker does not need to guess anything. They can load the entire MIXED COMBO list into automated software and test every credential pair against real login pages within minutes.

What Was Exposed in the MIXED COMBO Combolist

• Email addresses, which identify who the account belongs to and can be used for phishing or account recovery attacks.
• Plaintext passwords, meaning the actual password is exposed with no encryption or hashing to slow an attacker down.
• URLs, showing exactly which website or service each set of credentials was meant to log into.

Why This Matters

This kind of leak matters because passwords rarely stay in one place. People reuse them across banking, email, and shopping sites, so a plaintext password exposed here can be tried against dozens of other services through automated credential stuffing attacks. That is how a single combolist turns into a much bigger identity theft or fraud problem for tens of thousands of people at once.

How a Combolist Like MIXED COMBO Gets Made

A combolist is not usually the result of one company getting hacked. Instead, it is assembled by combining credentials pulled from many smaller sources, older breaches, stealer malware infections, phishing kits, and other combolists, then cleaned up and reformatted into simple email:password or email:password:URL lines. The person distributing MIXED COMBO on Telegram may not have breached anything themselves; they may have just compiled, filtered, or repackaged credentials that were already floating around.

This is exactly why combolists are so commonly traded in Telegram channels and dark web forums. They are cheap to produce, easy to distribute, and useful to a wide range of attackers, from beginners running simple credential stuffing scripts to more organized groups building larger attack campaigns. The lack of a single named corporate victim does not make the data any less real or any less risky for the people whose emails and passwords are in it.

Check If You Are Affected

You do not have to wonder whether your credentials ended up in a leak like this. HEROIC's free breach checker scans a database of 400 billion plus exposed records, including MIXED COMBO, and tells you right away if your information was part of it.