100,000 Records Leaked in ‘100k 2 Valids Mails’ Combolist Breach

In March 2026, HEROIC analysts uncovered a combolist titled 100k 2 valids mails, uploaded to a Telegram channel on 26-Mar-2026. True to its name, the file hits a full milestone of 100,000 records, each pairing an email address with a plaintext password. HEROIC treats this dataset as verified, meaning the credential pairs have been confirmed to be live rather than recycled junk.

Why This Is Dangerous

A combolist this size is not random noise, it is 100,000 working username and password combinations bundled into one file. Criminals do not need to guess anything, they simply load the list into automated software and let it try every pair against dozens of popular websites at once.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs tied to each credential pair

Why This Matters

At six figures of records, this list is exactly the kind of ammunition used in large scale credential stuffing campaigns. Every match found through password reuse can lead to account takeover on email, banking, or shopping accounts, opening the door to identity theft and financial fraud that can take months to fully undo.

How Combolist Breaches Work

A combolist is built by merging login credentials pulled from multiple past breaches, phishing campaigns, or stealer logs into one master file, then filtering it down to pairs confirmed to still work, hence valids in the name. Sellers on Telegram package these lists in bulk, like this 100,000 record set, and sell or trade them to other criminals looking for a ready made attack list.

Check If You Are Affected

With 100,000 confirmed valid credential pairs now circulating, the odds that your email is on a list like this are higher than most people assume. HEROIC's free breach scanner checks your address against more than 400 billion leaked records, including combolists like this one, so you know instantly whether it is time to change your passwords.