Is Your Acaedu Account Among the 3,073 Credentials Leaked?

3,073. That's the number of email and plaintext password pairs HEROIC found in a combolist tied to Acaedu accounts, dated back to December 2020. Each entry came with a matching login URL, ready for anyone who downloaded the file to try. If that number includes you, a quick scan of your email will tell you.

What 3,073 Working Logins Means in Practice

A batch this size is large enough to be worth an attacker's time but still small enough to run through quickly with automated tools, testing every pair against the original site and a rotation of other popular services.

Because the passwords are stored in plaintext, there's no cracking delay, an attacker can start testing the moment the file is downloaded.

What Was Exposed

• Email Addresses — identifies which account each credential belongs to.
• Plaintext Passwords — usable immediately, no decryption needed.
• URLs — confirms exactly where each login pair works.

Why 3,073 Records Still Add Up to Real Risk

Even a mid-sized file like this one can cause outsized damage if passwords have been reused elsewhere, since one working login can open the door to several accounts at once.

How This Combolist Came Together

Files like this are built by collecting credentials from earlier leaks, testing which pairs still work, and packaging the results by theme, here, logins tied to Acaedu accounts. It reflects data gathered from other sources rather than a new incident inside Acaedu's own systems.

How Do You Find Out If You're Part of the 3,073?

The quickest way is to scan your email against HEROIC's records. If you get a match, change that password right away, update it anywhere else you've used it, and add two-factor authentication. This goes for a work email just as much as a personal one.