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Henry Mayo Newhall Hospital

Henry Mayo Newhall Hospital Vendor Cyber Rating & Cyber Score

henrymayo.com

Henry Mayo Newhall Hospital is a 357-bed not-for-profit community hospital and trauma center that opened in 1975 to serve a rapidly growing community. Our vision is to create the ideal patient-centered environment to surpass expectations. In other words, to be great at what matters most to patients. We are apart of LA County's STEMI receiving network and provide a full spectrum of heart care services from cardiac intervention in the Roberta G. Veloz Cardiac Cath Lab to cardiac rehab and quarterly community heart fairs. In recent years we also opened the Kim & Steve Ullman Neonatal Intententive Care Unit and the Akbar Hasan Infusion Center. All of these expansions are the result of generous donations from area residents and business


HMNH A.I CyberSecurity Scoring

HMNH
Company Information
Website:http://www.henrymayo.com
Employees number:1,207
Number of followers:8,077
NAICS:62
Industry Type:Hospitals and Health Care
Homepage:henrymayo.com
HMNH Risk Score (AI oriented)
Between 750 and 799
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HMNHHospitals and Health Care
Updated:
01/04/2026
765/1000
Fair
Baa
AaaAaABaaBaBCaaCaC
Powered by our proprietary A.I cyber incident model
Insurance prefers TPRM score to calculate premium
HMNH Global Score (TPRM)
xxxx
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HMNHHospitals and Health Care
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Findings

HMNH
HMNHFair
Current Score
765Baa (FAIR)
01000
1 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
JULY 2026
765Before Incident
JUNE 2026
765Before Incident
MAY 2026
765Before Incident
APRIL 2026
765Before Incident
MARCH 2026
765Before Incident
FEBRUARY 2026
765Before Incident
JANUARY 2026
765Before Incident
DECEMBER 2025
765Before Incident
NOVEMBER 2025
765Before Incident
OCTOBER 2025
765Before Incident
SEPTEMBER 2025
765Before Incident
AUGUST 2025
765Before Incident
NOVEMBER 2009
766Before Incident
Data Leak
14 Nov 2009HMNH
Henry Mayo Newhall Hospital

Unauthorized Access to Medical Records at Henry Mayo Newhall Hospital

703After Incident
CRITICAL-63
HEN2212231222
Henry Mayo Newhall Hospital in Santa Clarita, CA fired several employees for compromising the medical records of the Saugus High School shooter. Hospital staff is only permitted to access the medical records of patients with whom they have a treatment relationship or if there is an otherwise legitimate business relationship for accessing the records. On November 14, 2009, a student of Saugus High School shot five students, killing two before turning the pistol on himself. The shooter was taken to Henry Mayo Newhall Hospital where he died the following day. Several employees at the hospital viewed the medical records of the shooter without any legitimate business purpose for doing so.
INCIDENT DETAILS -
TYPE
Data Breach
MOTIVATION
Unauthorized Curiosity
IMPACT
Medical Records
DATA BREACH
Type Of Data Compromised: Medical RecordsSensitivity Of Data: High

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