13k Valid List Leaks 12,972 Logins, More Than Many Towns

12,972 is roughly the population of a small town, and that's exactly how many stolen credential records sat inside the file called "13k valid" when it appeared on Telegram on December 31, 2022.

Why This Is Dangerous

Picture every person in a small town having their email and password handed to a stranger at once, that's the scale of what this file represents. It's not a massive breach by internet standards, but 12,972 real people is still a significant number of lives an attacker can try to disrupt.

What Was Exposed

• Email addresses linked to each infected device
• Passwords saved in plaintext with no protection
• URLs marking where each password is actually used

Why This Matters

Smaller numbers can feel less urgent, but that logic doesn't hold up. If you're one of the 12,972 people in this file, the size of the leak relative to some larger breach doesn't change your personal risk one bit, wich is easy to forget when headlines focus only on leaks in the millions.

How This Stealer Log Was Likely Built

Malware infections on individual devices quietly gather saved browser passwords, then send that data back to whoever is running the operation. Those individual harvests get combined into one file, labeled "valid" once someone confirms the credentials still work, and then sold or shared like this one was.

Check If You Are Affected

Whether a leak involves twelve thousand records or twelve million, the response is the same: check. HEROIC's free scanner compares your email against more than 400 billion leaked records, so you can definately find out if you're one of the 12,972 people in this particular file.