HMNH
Company Details
Linkedin ID:
henry-mayo-newhall-memorial-hospital
Website:
Employees number:
1,173
Number of followers:
7,214
NAICS:
62
Industry Type:
Homepage:
henrymayo.com
IP Addresses:
0
Company ID:
HEN_1993671
Scan Status:
In-progress
Henry Mayo Newhall Hospital Company CyberSecurity Posture
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 owners, as well as Henry Mayo medical staff and employees. Henry Mayo is also known for being an advanced primary stroke center, having a vital community cancer program, and has popular women's services for maternity and breast center. Henry Mayo Newhall Hospital is located at 23845 McBean Parkway, Valencia, CA 91355. For more information, visit www.henrymayo.com or call 661-200-2000
Henry Mayo Newhall Hospital A.I CyberSecurity Scoring
HMNH Risk Score (AI oriented)Between 750 and 799
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HMNH Company CyberSecurity News & History
Past Incidents
1
Attack Types
1
Henry Mayo Newhall Hospital
Data Leak
Rankiteo Explanation
Attack with significant impact with internal employee data leaks
Description: 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.
HMNH Company Scoring based on AI Models
Cyber Incidents Likelihood 3 - 6 - 9 months
A.I Risk Score Likelihood 3 - 6 - 9 months
Underwriter Stats for HMNH
Incidents vs Hospitals and Health Care Industry Average (This Year)
No incidents recorded for Henry Mayo Newhall Hospital in 2025.
Incidents vs All-Companies Average (This Year)
No incidents recorded for Henry Mayo Newhall Hospital in 2025.
Incident Types HMNH vs Hospitals and Health Care Industry Avg (This Year)
No incidents recorded for Henry Mayo Newhall Hospital in 2025.
Incident History — HMNH (X = Date, Y = Severity)
HMNH cyber incidents detection timeline including parent company and subsidiaries
HMNH Company Subsidiaries
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 owners, as well as Henry Mayo medical staff and employees. Henry Mayo is also known for being an advanced primary stroke center, having a vital community cancer program, and has popular women's services for maternity and breast center. Henry Mayo Newhall Hospital is located at 23845 McBean Parkway, Valencia, CA 91355. For more information, visit www.henrymayo.com or call 661-200-2000
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HMNH CyberSecurity News
May 12, 2025 07:00 AM
45 CIOs On the Move
We're proud to spotlight 45 CIOs, CTOs, and CISOs stepping into new roles across a wide range of industries.
December 03, 2015 08:00 AM
CHIME Announces New AEHIS Board Members
Three new board members were elected to AEHIA, including Josh Kohrumel, chief data officer, Rady Children's Hospital San Diego.
Frequently Asked Questions
Explore insights on cybersecurity incidents, risk posture, and Rankiteo's assessments.
HMNH CyberSecurity History Information
Official Website of Henry Mayo Newhall Hospital
The official website of Henry Mayo Newhall Hospital is http://www.henrymayo.com.
Henry Mayo Newhall Hospital’s AI-Generated Cybersecurity Score
According to Rankiteo, Henry Mayo Newhall Hospital’s AI-generated cybersecurity score is 765, reflecting their Fair security posture.
How many security badges does Henry Mayo Newhall Hospital’ have ?
According to Rankiteo, Henry Mayo Newhall Hospital currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.
Does Henry Mayo Newhall Hospital have SOC 2 Type 1 certification ?
According to Rankiteo, Henry Mayo Newhall Hospital is not certified under SOC 2 Type 1.
Does Henry Mayo Newhall Hospital have SOC 2 Type 2 certification ?
According to Rankiteo, Henry Mayo Newhall Hospital does not hold a SOC 2 Type 2 certification.
Does Henry Mayo Newhall Hospital comply with GDPR ?
According to Rankiteo, Henry Mayo Newhall Hospital is not listed as GDPR compliant.
Does Henry Mayo Newhall Hospital have PCI DSS certification ?
According to Rankiteo, Henry Mayo Newhall Hospital does not currently maintain PCI DSS compliance.
Does Henry Mayo Newhall Hospital comply with HIPAA ?
According to Rankiteo, Henry Mayo Newhall Hospital is not compliant with HIPAA regulations.
Does Henry Mayo Newhall Hospital have ISO 27001 certification ?
According to Rankiteo,Henry Mayo Newhall Hospital is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.
Industry Classification of Henry Mayo Newhall Hospital
Henry Mayo Newhall Hospital operates primarily in the Hospitals and Health Care industry.
Number of Employees at Henry Mayo Newhall Hospital
Henry Mayo Newhall Hospital employs approximately 1,173 people worldwide.
Subsidiaries Owned by Henry Mayo Newhall Hospital
Henry Mayo Newhall Hospital presently has no subsidiaries across any sectors.
Henry Mayo Newhall Hospital’s LinkedIn Followers
Henry Mayo Newhall Hospital’s official LinkedIn profile has approximately 7,214 followers.
NAICS Classification of Henry Mayo Newhall Hospital
Henry Mayo Newhall Hospital is classified under the NAICS code 62, which corresponds to Health Care and Social Assistance.
Henry Mayo Newhall Hospital’s Presence on Crunchbase
No, Henry Mayo Newhall Hospital does not have a profile on Crunchbase.
Henry Mayo Newhall Hospital’s Presence on LinkedIn
Yes, Henry Mayo Newhall Hospital maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/henry-mayo-newhall-memorial-hospital.
Cybersecurity Incidents Involving Henry Mayo Newhall Hospital
As of December 24, 2025, Rankiteo reports that Henry Mayo Newhall Hospital has experienced 1 cybersecurity incidents.
Number of Peer and Competitor Companies
Henry Mayo Newhall Hospital has an estimated 31,376 peer or competitor companies worldwide.
What types of cybersecurity incidents have occurred at Henry Mayo Newhall Hospital ?
Incident Types: The types of cybersecurity incidents that have occurred include Data Leak.
Incident Details
Can you provide details on each incident ?
Title: Unauthorized Access to Medical Records at Henry Mayo Newhall Hospital
Description: 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.
Type: Data Breach
Attack Vector: Unauthorized Access
Vulnerability Exploited: Insider Threat
Threat Actor: Internal Employees
Motivation: Unauthorized Curiosity
What are the most common types of attacks the company has faced ?
Common Attack Types: The most common types of attacks the company has faced is Data Leak.
Impact of the Incidents
What was the impact of each incident ?
Incident : Data Breach HEN2212231222
Data Compromised: Medical records
What types of data are most commonly compromised in incidents ?
Commonly Compromised Data Types: The types of data most commonly compromised in incidents are Medical Records.
Which entities were affected by each incident ?
Incident : Data Breach HEN2212231222
Entity Name: Henry Mayo Newhall Hospital
Entity Type: Healthcare Provider
Industry: Healthcare
Location: Santa Clarita, CA
Data Breach Information
What type of data was compromised in each breach ?
Incident : Data Breach HEN2212231222
Type of Data Compromised: Medical Records
Sensitivity of Data: High
Additional Questions
General Information
Who was the attacking group in the last incident ?
Last Attacking Group: The attacking group in the last incident was an Internal Employees.
Impact of the Incidents
What was the most significant data compromised in an incident ?
Most Significant Data Compromised: The most significant data compromised in an incident were Medical Records and .
Data Breach Information
What was the most sensitive data compromised in a breach ?
Most Sensitive Data Compromised: The most sensitive data compromised in a breach was Medical Records.
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Risk Information
cvss3
Base: 8.6
Severity: LOW
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References
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- https://github.com/langchain-ai/langchainjs/releases/tag/%40langchain%2Fcore%401.1.8
- https://github.com/langchain-ai/langchainjs/releases/tag/langchain%401.2.3
- https://github.com/langchain-ai/langchainjs/security/advisories/GHSA-r399-636x-v7f6
Description
LangChain is a framework for building agents and LLM-powered applications. Prior to versions 0.3.81 and 1.2.5, a serialization injection vulnerability exists in LangChain's dumps() and dumpd() functions. The functions do not escape dictionaries with 'lc' keys when serializing free-form dictionaries. The 'lc' key is used internally by LangChain to mark serialized objects. When user-controlled data contains this key structure, it is treated as a legitimate LangChain object during deserialization rather than plain user data. This issue has been patched in versions 0.3.81 and 1.2.5.
Risk Information
cvss3
Base: 9.3
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
References
- https://github.com/langchain-ai/langchain/commit/5ec0fa69de31bbe3d76e4cf9cd65a6accb8466c8
- https://github.com/langchain-ai/langchain/commit/d9ec4c5cc78960abd37da79b0250f5642e6f0ce6
- https://github.com/langchain-ai/langchain/pull/34455
- https://github.com/langchain-ai/langchain/pull/34458
- https://github.com/langchain-ai/langchain/releases/tag/langchain-core%3D%3D0.3.81
- https://github.com/langchain-ai/langchain/releases/tag/langchain-core%3D%3D1.2.5
- https://github.com/langchain-ai/langchain/security/advisories/GHSA-c67j-w6g6-q2cm
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