15 Abel Breach Incident Score: Analysis & Impact (15A5692656111125)

In this Rankiteo incident briefing, we review the 15 Abel breach identified under incident ID 15A5692656111125.

The analysis begins with a detailed overview of 15 Abel's information like the linkedin page: https://www.linkedin.com/company/15abel, the number of followers: 45, the industry type: Advertising Services and the number of employees: 1 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 750 and after the incident was 663 with a difference of -87 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 15 Abel and their customers.

On 31 October 2025, The Thayer Hotel disclosed data breach and unauthorized access issues under the banner "Cybersecurity Incident at The Thayer Hotel Affecting 33,053 Individuals".

The Thayer Hotel, located on the grounds of the United States Military Academy at West Point, disclosed a cybersecurity incident exposing the personally identifiable information (PII) of approximately 33,053 individuals, including military personnel and their families.

The disruption is felt across the environment, affecting computer systems, and exposing names, driver’s licence numbers and passport numbers, with nearly 33,053 records at risk.

In response, teams activated the incident response plan, moved swiftly to contain the threat with measures like system access restoration and environment securing, while recovery efforts such as notification letters to affected individuals (sent starting 2025-10-31) continue, and stakeholders are being briefed through public disclosure via PR Newswire, direct notification to affected individuals and regulatory notifications.

The case underscores how Completed (with third-party forensic assistance), teams are taking away lessons such as Hospitality venues near military installations face elevated risks due to collection of sensitive identity credentials, Need for rigorous third-party risk management and real-time monitoring of privileged access and Incident-response preparedness must be tailored to populations with elevated protection requirements (e.g., military personnel), and recommending next steps like Implement enhanced monitoring for privileged access and third-party vendors, Develop specialized incident response plans for high-risk populations (e.g., military-affiliated guests) and Offer proactive identity protection services (e.g., credit monitoring, fraud alerts) to affected individuals, with advisories going out to stakeholders covering Notification letters to affected individuals (sent starting 2025-10-31), Offer of 12 months of complimentary identity-theft protection and credit-monitoring services via Kroll Security and Advisory to place fraud alerts/credit freezes and review credit reports.

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 Initial Access tactic, the analysis identified Valid Accounts (T1078) with moderate to high confidence (70%), supported by evidence indicating unauthorized access to systems containing PII; no specific vector detailed and External Remote Services (T1133) with moderate confidence (60%), supported by evidence indicating no explicit vector, but breach implies remote exploitation of hotel systems. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (95%), supported by evidence indicating extracting names, driver’s licence numbers, passport numbers, SSNs from systems and Data from Network Shared Drive (T1039) with moderate to high confidence (70%), supported by evidence indicating computer systems accessed; likely centralized storage of PII. Under the Exfiltration tactic, the analysis identified Exfiltration Over Alternative Protocol: Exfiltration Over Unencrypted/Obfuscated Non-C2 Protocol (T1048.003) with moderate to high confidence (80%), supported by evidence indicating data exfiltration implied by exposure; no encryption/obfuscation details provided. Under the Impact tactic, the analysis identified Phishing for Information: Spearphishing via Service (T1598.003) with high confidence (90%), supported by evidence indicating heightened risks for ... targeted phishing campaigns due to military-affiliated PII exposure and Identity Theft (T1659) with high confidence (95%), supported by evidence indicating high identity theft risk from exposed SSNs, passports, and driver’s licenses. Under the Credential Access tactic, the analysis identified Unsecured Credentials: Credentials In Files (T1552.001) with moderate to high confidence (70%), supported by evidence indicating pII breach suggests potential access to stored credentials/identification documents. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.