MIT Alumni Network Credentials Exposed in alum.mit.edu Stealer Log

HEROIC analysts found a stealer log tied to alum.mit.edu that a Telegram user uploaded on 10 June 2026. The file contains 3,817 records, including email addresses, plaintext passwords, and the URLs of the login pages those credentials belong to.

Why This Is Dangerous

Because the data comes from a stealer log, it was pulled directly off infected computers rather than an old database dump. That means the passwords are often the exact ones people are still using today. Stored in plaintext, they can be read and reused by an attacker instantly, and the matching URL points straight to the login page each credential unlocks.

What Was Exposed in the alum.mit.edu Stealer Log

• Email addresses
• Plaintext passwords
• URLs of the accounts and login pages accessed

Why This Matters

An alumni network login often connects to a real name, career history, and sometimes a professional email address used for years. If any of these 3,817 credentials were reused elsewhere, an attacker can attempt the same email and password combination on email providers, banking sites, or workplace logins, a technique called credential stuffing. That can lead to account takeover, fraud, or identity theft.

How a Stealer Log Like This Gets Created

Stealer logs come from malware installed through a fake download, cracked software, or a malicious attachment. Once running on a victim's device, it grabs saved browser passwords and autofill details, then sends them back to the attacker along with the exact site each login belongs to. That is the same structure found in this alum.mit.edu dataset.

Check If You Are Affected

HEROIC's free breach scanner checks your email against a database of more than 400 billion compromised records, including stealer logs like this one. Run a scan now, and if your information turns up, change that password everywhere else you have reused it.