Toronto District School Board
Data Breach on August 30, 2024
| Data Breach Report | |||
|---|---|---|---|
| Victim | tdsb.on.ca | ||
| Claimed By | LockBit | ||
| Date Discovered | Aug 30, 2024 | ||
| Description | The Toronto District School Board (TDSB) is the largest and most diverse school board in Canada, serving over 240,000 students in 583 schools in Toronto. | ||
| Leak Size | Unknown |
Credential Exposure for tdsb.on.ca
We've indexed 59,665 @tdsb.on.ca accounts from external breaches, plus 9,415 credentials for tdsb.on.ca itself.
Last checked Oct 4, 2026
| @tdsb.on.ca addresses from external breaches | |
|---|---|
| Third-party breaches | 49,417 accounts · across 500 breaches · 44,900 with a plaintext password · most recent Aug 31, 2026 |
| Combo lists | 27,785 accounts · most recent Oct 4, 2026 |
| Phishing pages | 1 accounts · most recent Jul 24, 2026 |
| Passwords for tdsb.on.ca accounts | |
|---|---|
| Combo lists | 9,170 logins · most recent Oct 4, 2026 |
| Infostealer logs | 2,258 logins · 1,411 infected devices · most recent Oct 2, 2026 |
Logins may belong to customers or to staff, and the data doesn't say which. None of this is necessarily connected to the ransomware attack above.
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