Royal Cornwall Hospitals NHS Trust Breach Incident Score: Analysis & Impact (ROY1765289106)

In this Rankiteo incident briefing, we review the Royal Cornwall Hospitals NHS Trust breach identified under incident ID ROY1765289106.

The analysis begins with a detailed overview of Royal Cornwall Hospitals NHS Trust's information like the linkedin page: https://www.linkedin.com/company/royalcornwallnhs, the number of followers: 10757, the industry type: Hospitals and Health Care and the number of employees: 1800 employees

After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 767 and after the incident was 691 with a difference of -76 which is could be a good indicator of the severity and impact of the incident.

In the next step of the video, we will analyze in more details the incident and the impact it had on Royal Cornwall Hospitals NHS Trust and their customers.

Royal Cornwall Hospitals NHS Trust recently reported "Hospital staff sick days exposed in data breach", a noteworthy cybersecurity incident.

Personal details of thousands of current and former staff working for a hospital trust have been exposed in a data breach.

The disruption is felt across the environment, and exposing Staff personal details, job titles, sickness absences, and dates, with nearly 8,100 records at risk.

In response, teams activated the incident response plan, and stakeholders are being briefed through Written apology to affected employees.

Overall, the incident is a reminder of why proactive monitoring and strong governance matter.

Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.

The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.

Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Exfiltration tactic, the analysis identified Exfiltration Over Web Service (T1567) with moderate to high confidence (70%), supported by evidence indicating editable spreadsheet containing staffing data was inadvertently disclosed in FOI request and Exfiltration Over Alternative Protocol (T1048) with moderate confidence (60%), supported by evidence indicating disclosure via FOI request response (non-standard exfiltration channel). Under the Initial Access tactic, the analysis identified Phishing: Spearphishing Attachment (T1566.001) with lower confidence (40%), supported by evidence indicating fOI request may have been crafted to elicit sensitive data (implied). Under the Collection tactic, the analysis identified Data from Information Repositories (T1213) with moderate to high confidence (80%), supported by evidence indicating sickness absence records and staff details collected in spreadsheet. Under the Impact tactic, the analysis identified Data Destruction (T1485) with lower confidence (30%), supported by evidence indicating inadvertent disclosure may lead to misuse of exposed data and Data Manipulation: Stored Data Manipulation (T1565.001) with moderate confidence (50%), supported by evidence indicating editable spreadsheet exposed (potential for unauthorized modifications). These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.