Incident Score: Analysis & Impact (HOU1777367302)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of House of Commons's Cyber Attack and lateral movement inside company's environment.
- Overview of affected data sets, including SSNs and PHI, and why they materially increase incident severity.
- How Rankiteo’s incident engine converts technical details into a normalized incident score.
- How this cyber incident impacts House of Commons Rankiteo cyber scoring and cyber rating.
- Rankiteo’s MITRE ATT&CK correlation analysis for this incident, with associated confidence level.
Full Incident Analysis Transcript
In this Rankiteo incident briefing, we review the House of Commons breach identified under incident ID HOU1777367302.
The analysis begins with a detailed overview of House of Commons's information like the linkedin page: https://www.linkedin.com/company/house-of-commons, the number of followers: 1000, the industry type: Political Organizations and the number of employees: 6766 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 777 and after the incident was 752 with a difference of -25 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 House of Commons and their customers.
On 02 November 2023, Sir David Davis (MP for Goole and Pocklington) disclosed DDoS Attack issues under the banner "UK MP’s Website Hit by Massive DDoS Attack Linked to China".
Sir David Davis, the Conservative MP for Goole and Pocklington, revealed that his parliamentary website was targeted in a sustained cyberattack, allegedly originating largely from China.
The disruption is felt across the environment, affecting Parliamentary website.
In response, moved swiftly to contain the threat with measures like Website taken down and restored, and stakeholders are being briefed through Public disclosure in Commons address.
The case underscores how Ongoing, with advisories going out to stakeholders covering MPs can seek security advice from Parliamentary Security Department (PSD) and Parliamentary Digital Service (PDS).
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.
MITRE ATT&CK® Correlation Analysis
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 Initial Access tactic, the analysis identified Exploit Public-Facing Application (T1190) with moderate confidence (60%), supported by evidence indicating malicious links were inserted into his parliamentary website and User Execution: Malicious Link (T1204.001) with moderate to high confidence (70%), supported by evidence indicating malicious links...redirecting visitors to Southeast Asian gambling pages. Under the Impact tactic, the analysis identified Network Denial of Service (T1498) with high confidence (90%), supported by evidence indicating dDoS attack flooding it with 142 million requests in 24 hours, 800GB of data and Endpoint Denial of Service: Service Exhaustion Flood (T1499.002) with moderate to high confidence (80%), supported by evidence indicating website was taken down and restored, sustained disruption. Under the Defense Evasion tactic, the analysis identified Valid Accounts (T1078) with moderate confidence (50%), supported by evidence indicating state-linked cyber interference targeting elected officials and Impair Defenses: Disable or Modify Tools (T1562.001) with lower confidence (40%), supported by evidence indicating website taken down and restored, possible tampering. Under the Command and Control tactic, the analysis identified Application Layer Protocol: Web Protocols (T1071.001) with moderate to high confidence (70%), supported by evidence indicating 142 million requests in 24 hours, 800GB of data consumed. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- House of Commons Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/house-of-commons/incident/HOU1777367302
- House of Commons CyberSecurity Rating page: https://www.rankiteo.com/company/house-of-commons
- House of Commons Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/hou1777367302-uk-parliament-cyber-attack-april-2026/
- House of Commons CyberSecurity Score History: https://www.rankiteo.com/company/house-of-commons/history
- House of Commons CyberSecurity Incident Source: https://www.yorkpress.co.uk/news/26058524.david-daviss-website-hit-suspected-cyber-attack/
- Rankiteo A.I CyberSecurity Rating methodology: https://www.rankiteo.com/Images/rankiteo_algo.pdf
- Rankiteo TPRM Scoring methodology: https://static.rankiteo.com/model/rankiteo_tprm_methodology.pdf