Toronto Public Library Data Breach
On October 28, 2023, Canada's largest public library system, the Toronto Public Library (torontopubliclibrary.ca), suffered a Black Basta ransomware attack that encrypted internal servers and exfiltrated network shares.
Exposed Data Types
4- Names
- Dates of birth
- Government issued IDs
- Physical addresses
About This Breach
Final investigation findings reported to the Information and Privacy Commissioner of Ontario (IPC) confirmed that 13,992 individuals were affected, comprising 8,018 current and former staff members dating back to 1998, 1,874 staff dependents and beneficiaries, and 4,100 patrons, donors, and volunteers, exposing full names, dates of birth, Canadian Social Insurance Numbers (SINs), home addresses, and government ID copies.
Verification and editorial method
LeakData compares the incident name, date, affected-record count, and exposed data types with accessible sources. Unverified fields are not presented as facts, and records are updated when new evidence becomes available.
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