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Incident

University College London Hospitals NHS Foundation Trust

Incident posture

Attack window
May 2025
Location
United Kingdom
Status
Unknown
CIA posture
Available to members
Updated
2026-06-19 04:44

Linked entities

Victim
University College London Hospitals NHS Foundation Trust
Threat actors
0 actors
Sources
1 source

Timeline

Occurred
May 2025
Discovered
Pending
Disclosed
Pending
Resolved
Pending

Summary

University College London Hospitals NHS Foundation Trust reported that unauthorised users accessed a system containing staff mobile device information, including mobile numbers and IMEI codes, while confirming that no patient data or passwords were compromised. The trust stated there is no evidence that any personal data beyond the device identifiers was accessed, and it immediately secured the affected system. It is working with NHS England cyber security specialists to investigate the incident and ensure further protection of its networks.

Motives

Detailed motive labels are available to members.

1 motive

TTPs

Detailed technique labels are available to members.

2 techniques

Description

On 28 May 2025, media reports emerged indicating that unauthorized users had accessed a system operated by University College London Hospitals NHS Foundation Trust. The trust confirmed the reports and described the event as a cyber security incident. The compromised system contained information relating to staff mobile devices. Specifically, the data included mobile telephone numbers and the International Mobile Equipment Identity (IMEI) numbers of those devices. The trust explicitly stated that the system did not hold passwords or any patient data. Consequently, there was no evidence that patient information had been accessed or exfiltrated. The trust emphasized that it had found no indication that staff personal data beyond the mobile device identifiers had been compromised.

Upon discovery, the trust took immediate steps to secure the affected system and prevent further unauthorized access. It initiated a thorough investigation into the circumstances surrounding the breach. As part of its response, the trust collaborated with cyber security colleagues from NHS England. The joint effort aimed to assess the scope of the incident, identify any vulnerabilities, and reinforce defenses. The trust also communicated reassurance to patients, confirming that their data remained unaffected. No further details about the attackers, their motives, or the exact timeline of access were disclosed in the statement. The trust affirmed its commitment to maintaining the security of its systems and data moving forward.

Sources

Sources available to members: 1 source.

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