3K Online Test Leak: 1,248 Logins Exposed, Change Passwords Now

3K Online Test Leak: 1,248 Logins Are Exposed Right Now

HEROIC analysts found a combolist titled "3k online test," uploaded to a Telegram channel and added to our breach intelligence database. The file contains 1,248 records of email addresses paired with plaintext passwords and login URLs. The credentials were leaked on 11 April 2026.

Why This Is Dangerous

Every record in this file is ready to use immediately: a working email, a readable password, and the exact URL it logs into. There is no delay between someone downloading this file and attempting to break into the accounts listed in it. If your credentials are in this file, the window to act is now, not later.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated login URLs

Why This Matters

Attackers run files like this through credential stuffing tools within hours of getting access, testing the same email and password combination against banking, shopping, and social media sites. Because the passwords here are plaintext, no extra work is required before they are usable. Waiting to change a password that appears in a leak like this one increases the risk of account takeover, identity theft, and financial fraud with every passing day.

How a Combolist Like This Gets Built

A combolist labeled as a "test" file often means a smaller sample was compiled and shared first to demonstrate that the credentials work, before a larger batch is released or sold. The email and password pairs are usually pulled from earlier breaches, phishing pages, or malware logs and repackaged into a single file for quick use.

Check If You Are Affected

Do not wait to find out if you are on this list. HEROIC's free breach scanner checks your email against more than 400 billion leaked records instantly, so you can confirm whether you are exposed and change any compromised passwords before someone else logs in first.