Johnson Matthey A.I CyberSecurity Scoring
Johnson Matthey
Company Information
Website:http://www.matthey.com/
Employees number:8,574
Number of followers:223,791
NAICS:325
Industry Type:Chemical Manufacturing
Homepage:matthey.com
Johnson Matthey Risk Score (AI oriented)
Between 700 and 749
Johnson MattheyChemical Manufacturing
Updated:
04/04/2026
04/04/2026
736/1000
Moderate
Ba
Johnson Matthey Global Score (TPRM)
xxxx
Johnson MattheyChemical Manufacturing
Score locked

Johnson MattheyModerate
Current Score
736Ba (MODERATE)
01000
2 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
JUNE 2026
739
MAY 2026
740
APRIL 2026
738
MARCH 2026
738
FEBRUARY 2026
737
JANUARY 2026
736
DECEMBER 2025
736
NOVEMBER 2025
735
OCTOBER 2025
734
SEPTEMBER 2025
733
AUGUST 2025
733
JULY 2025
732
JUNE 2020
704
Breach
16 Jun 2020 • Johnson Matthey
Johnson Matthey, Inc.
Data Breach at Johnson Matthey, Inc.
642
HIGH-62
JOH251080525
On March 18, 2024, the California Office of the Attorney General reported a data breach involving Johnson Matthey, Inc. The breach occurred on February 15, 2024, and involved personal information of employees, including names, Social Security numbers, and dates of birth, which may have been stored without access controls since 2020; however, there is no evidence of unauthorized access to the files.
INCIDENT DETAILS -
TYPE
IMPACT
DATA BREACH
REFERENCES
JANUARY 2020
769
Breach
01 Jan 2020 • Johnson Matthey
Johnson Matthey, Inc.
Inadvertent Disclosure of Personal Information at Johnson Matthey, Inc.
697
CRITICAL-72
JOH1021090725
Johnson Matthey, Inc. experienced an inadvertent disclosure of personal information, reported by the Maine Office of the Attorney General on March 18, 2024. The breach occurred over an extended period, spanning from January 1, 2020, to February 15, 2024, exposing sensitive data of 6,095 individuals, primarily their Social Security numbers (SSNs). The compromised SSNs pose a significant risk of identity theft, financial fraud, and long-term reputational harm to the affected individuals. In response, the company offered 24 months of identity protection services through Experian’s IdentityWorks to mitigate potential damages. The incident highlights vulnerabilities in data handling practices, raising concerns about internal controls and the safeguarding of personally identifiable information (PII). While no ransomware or malicious cyber attack was explicitly mentioned, the scale and nature of the exposed data suggest a severe impact on customer trust and regulatory compliance.
INCIDENT DETAILS -
TYPE
IMPACT
DATA BREACH
REFERENCES
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