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University of Phoenix Breach Affects Nearly 3.5M, Linked to Clop Group

First seen 23 Dec 2025, 01:57 UTC • •47.5

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ThreatCluster •March 12, 2026 at 13:27 UTC

The University of Phoenix experienced a data breach affecting nearly 3.5 million individuals, attributed to the Clop cybercrime group. Clop is known for exploiting zero-day vulnerabilities to conduct large-scale data-extortion attacks.

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Updated 242d ago How this analysis works

Threat Graph

7 entities, 9 inferred relationships (STIX 2.1).

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Technique (2)

Data Breach
Ransomware

Campaign (1)

Oracle EBS Hacking Campaign

Organization (1)

University Of Phoenix

Affected Platform (1)

Oracle EBS

Threat Actor (2)

Cl0p
Clop

Relationships

Cl0p uses Data Breach
Cl0p uses Ransomware
Clop uses Data Breach
Clop uses Ransomware
Oracle EBS Hacking Campaign attributed to Cl0p
Oracle EBS Hacking Campaign attributed to Clop
Cl0p targets University Of Phoenix
Clop targets University Of Phoenix
Cl0p related to Oracle EBS

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University of Phoenix Breach Affects Nearly 3.5M, Linked to Clop Group

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Extracted Entities (7)

Attack Types (2)

Campaigns (1)

Companies (1)

Platforms (1)

Ransomware Groups (2)