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Toronto District School Board

Toronto District School Board Vendor Cyber Rating & Cyber Score

on.ca

The Toronto District School Board (TDSB) is the largest and one of the most diverse school boards in Canada, and recognized by Forbes and Statista as one of Canada's Best Employers for Diversity for 2023. We serve more than 239,000 students in 582 schools throughout Toronto, and more than 100,000 lifelong learners in our Adult and Continuing Education programs. The TDSB’s Director is supported by the Senior Team and is responsible for: • serving our students and communities • improving academic performance • managing business services • providing staff support • operating and maintaining our buildings The Board is also supported by 22 publicly elected Trustees. Our Trustees work to ensure that all of our students realize their potential


TDSB A.I CyberSecurity Scoring

TDSB
Company Information
Website:http://www.tdsb.on.ca
Employees number:11,546
Number of followers:60,336
NAICS:6111
Industry Type:Primary and Secondary Education
Homepage:on.ca
TDSB Risk Score (AI oriented)
Between 700 and 749
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TDSBPrimary and Secondary Education
Updated:
02/04/2026
713/1000
Moderate
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Powered by our proprietary A.I cyber incident model
Insurance prefers TPRM score to calculate premium
TDSB Global Score (TPRM)
xxxx
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TDSBPrimary and Secondary Education
•••
Score locked
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Findings

TDSB
TDSBModerate
Current Score
713Ba (MODERATE)
01000
1 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
JULY 2026
716Before Incident
JUNE 2026
716Before Incident
MAY 2026
714Before Incident
APRIL 2026
714Before Incident
MARCH 2026
712Before Incident
FEBRUARY 2026
712Before Incident
JANUARY 2026
711Before Incident
DECEMBER 2025
710Before Incident
NOVEMBER 2025
708Before Incident
OCTOBER 2025
707Before Incident
SEPTEMBER 2025
706Before Incident
AUGUST 2025
704Before Incident
DECEMBER 2024
788Before Incident
Breach
01 Dec 2024TDSB
PowerSchool

PowerSchool Data Breach Affecting Canadian Public Schools

692After Incident
CRITICAL-96
POW1393613112025
In December 2024, PowerSchool—a widely used student information system (SIS) provider—suffered a major data breach due to compromised credentials, allowing a threat actor to access its student information system (SIS) and customer support portal (PowerSource). The breach exposed personal data of ~5.2 million Canadians, including students, parents/guardians, and staff across eight provinces and one territory, with 3.86 million in Ontario and 700,000+ in Alberta affected. The attacker exfiltrated sensitive records, exploiting an ‘always-on’ remote maintenance feature left unsecured by school boards. Investigations by Ontario and Alberta’s privacy commissioners revealed critical gaps in PowerSchool’s security measures, including lack of multi-factor authentication (MFA), inadequate contract provisions for privacy compliance, and poor breach response protocols among educational bodies. An American college student was later arrested and sentenced to four years in prison for cyber extortion linked to the attack. The incident underscored systemic failures in safeguarding student data, prompting calls for stricter vendor agreements and enhanced oversight.
INCIDENT DETAILS -
TYPE
Data BreachCyber ExtortionUnauthorized Access
MOTIVATION
Cyber ExtortionFinancial GainData Theft
IMPACT
PowerSchool Student Information System (SIS)PowerSource (Customer Support Portal)Disruption to school administrative operationsLoss of trust in digital education systemsSignificant reputational damage to PowerSchoolErosion of public trust in school boards' data protection capabilitiesPotential lawsuits (e.g., Calgary law firm filed a lawsuit)Regulatory scrutiny from privacy commissioners
DATA BREACH
Personal Information of StudentsPersonal Information of Parents/GuardiansPersonal Information of Staff/EducatorsNumber Of Records Exposed: 5,200,000 (Canada-wide)Sensitivity Of Data: High (includes personally identifiable information of minors and educators)

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