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Mastery Schools

Mastery Schools Vendor Cyber Rating & Cyber Score

masterycharter.org

Mastery Charter Schools and Mastery Schools of Camden form a non-profit school network of charter, turnaround and renaissance schools in Philadelphia, PA and Camden, NJ, serving over 14,000 students in grades K-12. Our mission is to ensure all students learn the academic and personal skills they need to be truly prepared for postsecondary success and able to pursue their dreams. Mastery is nationally recognized for its ability to turn around failing neighborhood schools and to drive dramatic student achievement gains. In our turnaround schools, test scores have increased, on average, more than 40 percentage points per grade and subject after three years, violence decreased by 80% and student turnover dropped by one-third. Mastery schools


Mastery Schools A.I CyberSecurity Scoring

Mastery Schools
Company Information
Website:http://www.masterycharter.org
Employees number:1,166
Number of followers:15,563
NAICS:92311
Industry Type:Education Administration Programs
Homepage:masterycharter.org
Mastery Schools Risk Score (AI oriented)
Between 600 and 649
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Mastery SchoolsEducation Administration Programs
Updated:
31/03/2026
649/1000
Poor
Caa
AaaAaABaaBaBCaaCaC
Powered by our proprietary A.I cyber incident model
Insurance prefers TPRM score to calculate premium
Mastery Schools Global Score (TPRM)
xxxx
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Mastery SchoolsEducation Administration Programs
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Findings

Mastery Schools
Mastery SchoolsPoor
Current Score
649Caa (POOR)
01000
1 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
JUNE 2026
655Before Incident
MAY 2026
652Before Incident
APRIL 2026
650Before Incident
MARCH 2026
649Before Incident
FEBRUARY 2026
647Before Incident
JANUARY 2026
645Before Incident
DECEMBER 2025
643Before Incident
NOVEMBER 2025
640Before Incident
OCTOBER 2025
638Before Incident
SEPTEMBER 2025
636Before Incident
AUGUST 2025
633Before Incident
JULY 2025
631Before Incident
SEPTEMBER 2024
767Before Incident
Ransomware
15 Sep 2024Mastery Schools
Mastery Schools

Mastery Schools Ransomware Attack

602After Incident
CRITICAL-165
MAS456061725
A ransomware attack on Mastery Schools, the largest charter school network in Philadelphia, compromised the personal data of 37,031 people. The breach, detected on September 15, 2024, exposed sensitive information including Social Security numbers, medical details, and student records. The attack, claimed by the ransomware group DragonForce, disrupted key operations such as phone and email access. Mastery Schools is offering free identity protection to victims and enhancing security measures.
INCIDENT DETAILS -
TYPE
Data Breach, Ransomware
MOTIVATION
Financial Gain, Data Theft
IMPACT
NamesDates of birthSocial Security numbersTaxpayer ID numbersGovernment-issued IDsPassport numbersBank and financial informationCredit and debit card detailsBiometric dataUsernames and passwordsMedical and health insurance infoStudent ID numbersStudent recordsSystems Affected: Phone and email accessOperational Impact: Disruption of key operationsIdentity Theft Risk: None reported
DATA BREACH
NamesDates of birthSocial Security numbersTaxpayer ID numbersGovernment-issued IDsPassport numbersBank and financial informationCredit and debit card detailsBiometric dataUsernames and passwordsMedical and health insurance infoStudent ID numbersStudent recordsNumber Of Records Exposed: 37,031Sensitivity Of Data: HighData Exfiltration: 171 GB of dataPersonally Identifiable Information: Yes

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