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Clop Ransomware Group Breaches University of Phoenix, Exposing 3.5 Million Records

Clop Ransomware Group Breaches University of Phoenix, Exposing 3.5 Million Records

First seen 23 Dec 2025, 17:01 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 13:27 UTC

The University of Phoenix reported a data breach affecting approximately 3.5 million individuals, including current and former students, staff, and suppliers. The breach, attributed to the Clop ransomware group, occurred after attackers exploited a vulnerability in Oracle's E-Business Suite, gaining unauthorized access to sensitive personal and financial information. The incident was disclosed in December 2025, although the unauthorized access occurred in August 2025.

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