One Stealer Log. 2,491 Records. The Csus.edu Credentials.

HEROIC analysts identified this stealer log on 10-Jun-2026. The breach exposed 2,491 records, with stolen data including email addresses, plaintext passwords, and URLs. The source is identified as csus.edu, the domain of California State University, Sacramento.

Why This Is Dangerous

University email credentials are connected to a wide range of systems, from course portals and library databases to university email itself and financial accounts. This stealer log includes plaintext passwords and the exact URLs where they were used, giving attackers an immediate roadmap for account access. Students and staff who reused these passwords on personal accounts face an equally serious threat beyond campus systems.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs (the specific websites where credentials were active)

Why This Matters

Compromised university credentials can lead to unauthorized access to student records, financial aid information, and institutional email. Beyond campus impact, attackers often pivot to personal accounts by using the same stolen password to attempt logins on Gmail, banking apps, and shopping sites. Identity theft is a real downstream risk for anyone whose credentials appear in this log.

How Stealer Logs Work

Stealer malware is a type of program that installs itself on a computer and immediately begins collecting passwords. It looks through the browser's saved password store, records the username and password for each site, and sends everything back to the attacker. The person using the computer never sees any sign of this. The collected data is bundled into a log file and uploaded to Telegram, where it gets shared or sold to other bad actors.

Check If You Are Affected

HEROIC offers a free breach scanner that searches 400 billion records. Search your email address now to see if your credentials appear here or elsewhere. Free, takes seconds.