Barts Health NHS discloses data breach after Oracle zero-day hack
Barts Health NHS Trust has announced that Clop ransomware actors have stolen files from a database by exploiting a vulnerability in its Oracle E-business Suite software. [...]
Clop is a ransomware family covered through reported incidents, technical analysis, disruption efforts, and defensive guidance for organizations.
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Background for this topic.
Clop is a ransomware family used by a criminal group that encrypts files on compromised systems and demands cryptocurrency payments for decryption keys. It is known for combining file encryption with data theft, threatening to publicly release stolen information if victims do not pay. Clop operators often exploit unpatched software vulnerabilities and exposed remote access services to gain entry, then move laterally within networks to maximize impact.
Defending against Clop requires timely patching of software and network devices, strict access controls, and segmentation to limit attacker movement. Monitoring for unusual data transfers can help detect exfiltration attempts linked to Clop’s double extortion tactics. Multi-factor authentication and user training reduce risks from credential theft and phishing, common initial vectors for this ransomware. Understanding Clop’s methods supports targeted detection and containment strategies in enterprise environments.
Barts Health NHS Trust has announced that Clop ransomware actors have stolen files from a database by exploiting a vulnerability in its Oracle E-business Suite software. [...]
The University of Phoenix (UoPX) has joined a growing list of U.S. universities breached in a Clop data theft campaign targeting vulnerable Oracle E-Business Suite instances in August 2025. [...]
Ivy League school warns more than 1,400 people after attackers siphon data via zero-day The University of Pennsylvania has become the latest victim of Clop's smash-and-grab spree against Oracle's E-Business Suite (EBS) customers, with the Ivy League school now warning more than a thousand individuals that their personal data was siphoned from its systems.…