3,527 Passwords From the ‘3.3k’ Telegram Dump Just Surfaced

What HEROIC Analysts Found

On October 14, 2025, HEROIC analysts identified a combolist file uploaded to a Telegram channel and labeled simply "3.3k," a shorthand reference to its approximate size. The file actually contained 3,527 records pairing email addresses with plaintext passwords and the website URLs those credentials were used on. Files with terse, size-based names like this one are common in Telegram trading groups, where uploaders often skip a formal name entirely.

Why This Is Dangerous

Because the passwords in the 3.3k file are unencrypted and paired directly with the site each one belongs to, anyone who downloads it can start testing logins immediately. There is no password cracking step involved, which means the barrier to misusing this data is close to zero.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated website URLs

Why This Matters

A file like this one is built for credential stuffing, where automated tools try each stolen email and password pair against dozens of other websites at once. If any of the 3,527 people in the 3.3k leak reused their password elsewhere, that account is now at risk of takeover. Attackers who succeed can drain financial accounts, hijack email addresses to reset other passwords, or use stolen personal details to commit identity theft.

How Combolist Leaks Work

A combolist pairs a username or email with a password, usually written as "email:password" per line, and is typically assembled from a mix of older breaches, stealer log output, and previous leaks rather than one single hack. Generic file names like "3.3k" simply describe the record count, since many uploaders trade these files anonymously and in bulk without branding them. Their plain formatting is exactly what makes them fast and easy for attackers to use.

Check If You Are Affected

If you think your email could be part of the 3.3k leak or any other exposure, HEROIC's free breach scanner checks your information against a database of more than 400 billion leaked records. Run a free scan to see if your credentials appeared in this leak and find out which passwords to change first.