Cardinal Services Data Breach Exposes Sensitive Personal Information

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Cardinal Services Data Breach Exposes Sensitive Personal Information

First seen 22 May 2026, 21:39 UTC • •64.5

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ThreatCluster •May 23, 2026 at 21:34 UTC

•The breach exposed sensitive personal data, including Social Security numbers.
•Unauthorized access to Cardinal Services' network was detected in June 2025.
•Edelson Lechtzin LLP is investigating potential class action lawsuits for affected individuals.

Cardinal Services, Inc. reported a data breach that exposed sensitive personal and financial information, including Social Security numbers and financial account details. The breach was discovered on June 30, 2025, when unauthorized access to the company's computer network was detected. An investigation revealed that personal data was accessed between June 25-26 and August 8, 2025. The company notified the Vermont Attorney General about the breach on May 20, 2026, but did not disclose the total number of affected individuals. Affected individuals are being contacted and advised to monitor their accounts for suspicious activity. Edelson Lechtzin LLP is investigating potential class action claims related to the breach. Individuals who received notifications are at increased risk of identity theft and fraud. Cardinal Services provides HR and staffing services and has been operational for over 40 years.

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Updated 121d ago How this analysis works

Timeline

2025-06-25

Data accessed

Investigation revealed that personal information was accessed on June 25-26 and August 8, 2025.

2025-06-30

Unauthorized access detected

Cardinal Services discovered unauthorized access to its computer network, prompting an investigation.

2026-05-20

Breach reported to authorities

Cardinal Services reported the data breach to the Vermont Attorney General, disclosing the exposure of sensitive information.

2026-05-22

Class action investigation launched

Edelson Lechtzin LLP announced an investigation into potential class action claims for individuals affected by the breach.

More articles in this cluster (5)

Threat Graph

5 entities, 4 inferred relationships (STIX 2.1).

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Threat Actor (1)

Cardinal

Technique (1)

Data Breach

Organization (2)

Cardinal Employer Organization
Preferred Employer Solutions

Weakness (1)

CWE-200 - Exposure of Sensitive Information

Relationships

Cardinal uses Data Breach
Cardinal targets Cardinal Employer Organization
Cardinal targets Preferred Employer Solutions
Cardinal related to CWE-200 - Exposure of Sensitive Information

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