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Jefferson Elementary School District

Jefferson Elementary School District Vendor Cyber Rating & Cyber Score

jsd.k12.ca.us
in
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ISO 27001
SOC 2 Type 1
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The Jefferson Elementary School District serves PK through 8th grade students from four contiguous areas in San Mateo County - the city of Daly City, the Town of Colma, unincorporated Broadmoor Village, and a small section of the city of Pacifica. Daly City, with an estimated population of approximately 100,000 is the largest political unit, not only in the four areas, but also in the entire San Mateo County. The population of the four communities has a wide socio-economic, ethnic, and cultural diversity. The community is situated close to the City of San Francisco, the Bay, the Pacific Ocean, and San Bruno Mountain. The Jefferson Elementary School District was established in 1866. As the population grew and shifted from the original Daly


JESD A.I CyberSecurity Scoring

Incident Details
JESD
Company Information
Website:http://www.jsd.k12.ca.us/
Employees number:544
Number of followers:950
NAICS:6111
Industry Type:Primary and Secondary Education
Homepage:jsd.k12.ca.us
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JESD Risk Score (AI oriented)
Between 700 and 749
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JESDPrimary and Secondary Education
Updated:
03/04/2026
716/1000
Moderate
Ba
AaaAaABaaBaBCaaCaC
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JESD Global Score (TPRM)
xxxx
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JESDPrimary and Secondary Education
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JESD
JESDModerate
Current Score
716Ba (MODERATE)
01000
1 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
JUNE 2026
719Before Incident
MAY 2026
717Before Incident
APRIL 2026
717Before Incident
MARCH 2026
716Before Incident
FEBRUARY 2026
715Before Incident
JANUARY 2026
715Before Incident
DECEMBER 2025
714Before Incident
NOVEMBER 2025
713Before Incident
OCTOBER 2025
712Before Incident
SEPTEMBER 2025
711Before Incident
AUGUST 2025
710Before Incident
JULY 2025
709Before Incident
SEPTEMBER 2024
775Before Incident
Breach
27 Sep 2024 • JESD
Jefferson Elementary School District

Data Breach at Jefferson Elementary School District

698After Incident
HIGH-77
JEF353072725
The Pennsylvania Office of the Attorney General reported a data breach involving Jefferson Elementary School District on March 3, 2025. The breach occurred on September 27, 2024, and involved unauthorized access to computer servers, potentially exposing employee names, addresses, Social Security numbers, and salary information. Approximately one individual was affected.
INCIDENT DETAILS -
TYPE
Data Breach
IMPACT
Employee namesAddressesSocial Security numbersSalary informationComputer servers
DATA BREACH
Employee namesAddressesSocial Security numbersSalary informationNumber Of Records Exposed: 1Sensitivity Of Data: HighEmployee namesAddressesSocial Security numbers
REFERENCES
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