5.57 Million Credentials Exposed in the Private Leak 31.01.2026 Dump

In late January 2026, HEROIC analysts identified a combolist file uploaded by a Telegram user, containing 5,573,125 records of email addresses paired with plaintext passwords and associated URLs. The file, tracked internally as Private_Leak_31.01.2026_Part_1, was posted directly to a Telegram channel rather than a traditional dark web marketplace, a distribution method that has become increasingly common for combolists built from older breach data recycled and repackaged for resale or free circulation.

Why a Plaintext Password Combolist Is Dangerous

Unlike breaches where passwords are hashed or encrypted, this file stores every password in plaintext. That means anyone who downloads it can immediately try each email and password pair against other websites, no cracking or decryption required. Combined with the included URLs, which typically point to the exact site each credential pair was used on, attackers get a ready-made list of working logins they can test in minutes.

What Was Exposed in the January 2026 Combolist

• Email addresses
• Plaintext passwords
• URLs linking each credential pair to its source site

Why This Matters for the 5.5 Million People Affected

Combolists like this one are a favorite tool for credential stuffing attacks, where automated scripts feed millions of email and password pairs into login forms across banking, email, retail, and social media sites. Because so many people reuse the same password across multiple accounts, a single leaked credential pair can unlock several accounts belonging to the same person. Anyone whose email appears in this file is at elevated risk of account takeover, identity theft, and fraudulent purchases made in their name.

How This Combolist Was Built

A combolist is a compiled text file of username or email and password pairs, usually assembled from multiple older breaches, stealer logs, or previous leaks rather than a single hack of one company. Whoever built this one collected credentials from various sources, filtered out duplicates, and packaged them with source URLs to make the list more useful to buyers or other attackers. Because combolists are cheap and easy to produce, they circulate widely on Telegram and dark web forums, often changing hands multiple times before analysts identify them.

Check If Your Email Is in This Leak

If you use any of the same passwords across multiple accounts, this combolist is a reminder to check your exposure now rather than after something goes wrong. HEROIC's free breach scanner searches a database of more than 400 billion leaked records, including this one, to tell you instantly whether your email address or password has surfaced in a known breach or dark web dump. Run a free scan and update any passwords that show up as exposed.