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Durham District School Board

Durham District School Board Vendor Cyber Rating & Cyber Score

ddsb.ca
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Durham District School Board (DDSB) is responsible for public education in the rural communities of Uxbridge, Brock and Scugog townships and the cities and towns of Ajax, Whitby, Pickering and Oshawa. We employ over 10,000 teaching and educational services staff in 135 elementary and secondary schools and learning centres. DDSB has more than 79,000 regular day students and thousands more who take continuing education and adult credit courses. More information can be found on the Board’s website at www.ddsb.ca. Please follow us on Twitter and Instagram @DDSBschools and on Facebook @DurhamDistrictSchoolBoard.


DDSB A.I CyberSecurity Scoring

Incident Details
DDSB
Company Information
Website:http://www.ddsb.ca
Employees number:4,615
Number of followers:14,330
NAICS:92311
Industry Type:Education Administration Programs
Homepage:ddsb.ca
Cyber Premium EstimationGet Supply Chain
DDSB Risk Score (AI oriented)
Between 700 and 749
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DDSBEducation Administration Programs
Updated:
02/04/2026
737/1000
Moderate
Ba
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DDSB Global Score (TPRM)
xxxx
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DDSBEducation Administration Programs
•••
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Findings

DDSB
DDSBModerate
Current Score
737Ba (MODERATE)
01000
1 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
JUNE 2026
738Before Incident
MAY 2026
737Before Incident
APRIL 2026
737Before Incident
MARCH 2026
736Before Incident
FEBRUARY 2026
736Before Incident
JANUARY 2026
735Before Incident
DECEMBER 2025
735Before Incident
NOVEMBER 2025
734Before Incident
OCTOBER 2025
734Before Incident
SEPTEMBER 2025
733Before Incident
AUGUST 2025
732Before Incident
JULY 2025
732Before Incident
JANUARY 2022
772Before Incident
Breach
01 Jan 2022 • DDSB
Durham District School Board

Durham District School Board Data Security Breach

689After Incident
HIGH-83
DUR11424422
The names of staff at Durham District School Board who are not vaccinated for COVID-19 were exposed in a data security breach incident. The board mistakenly attached a spreadsheet of the names of about 800 unvaccinated or undisclosed staff while sending out a “routine” email about rapid testing. The board apologized to the affected staff and provided additional training for all staff involved with secure documents to prevent any such happenings in future.
INCIDENT DETAILS -
TYPE
Data Breach
IMPACT
Names of unvaccinated or undisclosed staff
DATA BREACH
Type Of Data Compromised: Personally Identifiable InformationSensitivity Of Data: HighSpreadsheetNames of unvaccinated or undisclosed staff
REFERENCES
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