The Scdsb.on.ca Stealer Log Contains Exactly 538 Password Pairs

HEROIC analysts found a stealer log dataset tied to scdsb.on.ca that was uploaded to a Telegram channel on June 10, 2026. The file contains exactly 538 records taken directly from infected devices, including email addresses, plaintext passwords, and the URLs of the login pages those credentials open. Scdsb.on.ca is the domain for the Simcoe County District School Board in Ontario, so the accounts in this file likely belong to staff, teachers, or students who use board email systems.

Why This Stealer Log Is Dangerous

Precision is what makes stealer logs so usable. Each of these 538 passwords sits in plaintext, exactly as typed by the account holder, and is paired with the exact site it unlocks. There is no cracking or guessing required. An attacker can open the file and immediately see which login belongs to which service.

What Was Exposed in the Scdsb.on.ca Stealer Log

• Email addresses tied to infected devices
• Plaintext passwords for those accounts
• URLs identifying the exact login pages the credentials belong to

Why This Matters for School Board Staff and Families

School board systems often connect to student records, staff payroll, and internal communications. If any of the 538 people in this file reused their password elsewhere, credential stuffing could put personal email or banking accounts at risk too. Account takeover and identity theft become real concerns once a working plaintext password like this is exposed, even in a smaller breach like this one.

How Stealer Logs Like This One Get Created

Stealer log malware infects a device through fake downloads, cracked software, or malicious attachments. Once active, it silently harvests saved browser passwords, autofill data, and session information, then packages everything into a log file sent back to the attacker. These logs are frequently traded or dumped in Telegram channels, exactly where HEROIC analysts found this one.

Check If You Are Affected

If you use a scdsb.on.ca email address, do not assume a smaller number means you are safe. HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records, including stealer logs like this one, so you can find out quickly whether your information was exposed.