Incident Score: Analysis & Impact (BWH1778510481)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of BWH Hotels's Breach 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 BWH Hotels 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 BWH Hotels breach identified under incident ID BWH1778510481.
The analysis begins with a detailed overview of BWH Hotels's information like the linkedin page: https://www.linkedin.com/company/bwhhotels, the number of followers: 15668, the industry type: Hospitality and the number of employees: 454 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 775 and after the incident was 697 with a difference of -78 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 BWH Hotels and their customers.
On 22 April 2025, BWH Hotels disclosed Data Breach issues under the banner "BWH Hotels Discloses Third-Party Data Breach Affecting Guest Information".
BWH Hotels, the parent company of brands including WorldHotels, Best Western Hotels & Resorts, and Sure Hotels, has notified customers of a third-party data breach exposing six months of guest reservation data.
The disruption is felt across the environment, affecting Web application storing guest reservation details, and exposing Guest reservation data.
In response, moved swiftly to contain the threat with measures like Took the affected application offline, revoked unauthorized access, and began remediation that includes Bolstered defenses, and stakeholders are being briefed through Customer notification.
The case underscores how with advisories going out to stakeholders covering Customer notification sent.
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 high confidence (90%), supported by evidence indicating unauthorized access targeted a web application storing guest reservation details. Under the Credential Access tactic, the analysis identified Steal Application Access Token (T1528) with moderate to high confidence (70%), supported by evidence indicating third-party data breach exposing six months of guest reservation data and Brute Force: Password Guessing (T1110.001) with moderate confidence (50%), supported by evidence indicating no details on how unauthorized access was initially gained. Under the Collection tactic, the analysis identified Data from Information Repositories (T1213) with high confidence (90%), supported by evidence indicating exposed information includes names, email addresses, phone numbers, home addresses. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (80%), supported by evidence indicating six months of guest reservation data...exposing...guest reservation details and Transfer Data to Cloud Account (T1537) with moderate confidence (60%), supported by evidence indicating third-party data breach...web application storing guest reservation details. Under the Impact tactic, the analysis identified Data Destruction (T1485) with lower confidence (30%), supported by evidence indicating no details on whether data was altered or deleted. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- BWH Hotels Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/bwhhotels/incident/BWH1778510481
- BWH Hotels CyberSecurity Rating page: https://www.rankiteo.com/company/bwhhotels
- BWH Hotels Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/bwh1778510481-bwh-hotels-breach-october-2025/
- BWH Hotels CyberSecurity Score History: https://www.rankiteo.com/company/bwhhotels/history
- BWH Hotels CyberSecurity Incident Source: https://www.theregister.com/security/2026/05/11/best-western-hotels-confirms-web-app-data-breach/5238020
- 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