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Analyze » Hyatt Place New York/Chelsea » GRAHYA1768941064

Incident Score: Analysis & Impact (GRAHYA1768941064)

The details regarding individual company incidents & reports gives you full view from every side.

Rankiteo Score Impact Analysis

Rankiteo Incident Impact-124
Company Score Before Incident771 / 1000
Company Score After Incident647 / 1000
Company LinkView Hyatt Place New York/Chelsea Profile
INCIDENT NUMBERGRAHYA1768941064
Type of Cyber IncidentRansomware
ATTACK VECTORNA
DATA EXPOSED48.5 GB of sensitive data
INCIDENT DATE19/01/2026
STATUSpublished

Key Highlights From The Incident Analysis

  • Timeline of Hyatt Place New York/Chelsea's Ransomware 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 Hyatt Place New York/Chelsea 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 Hyatt Place New York/Chelsea breach identified under incident ID GRAHYA1768941064.

The analysis begins with a detailed overview of Hyatt Place New York/Chelsea's information like the linkedin page: https://www.linkedin.com/company/hyatt-place-new-york-chelsea, the number of followers: 125, the industry type: Hospitality and the number of employees: 3 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 771 and after the incident was 647 with a difference of -124 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 Hyatt Place New York/Chelsea and their customers.

Hyatt Place Chelsea recently reported "NightSpire Ransomware Attack on Hyatt Place Chelsea", a noteworthy cybersecurity incident.

A ransomware attack targeting the Hyatt Place Chelsea hotel in New York has allegedly resulted in the theft of 48.5 GB of sensitive data, including invoices, expense reports, employee names, contact details, signatures, and partner company data.

The disruption is felt across the environment, affecting Internal content management system (CMS), and exposing 48.5 GB of sensitive data.

Formal response steps have not been shared publicly yet.

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.

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 Valid Accounts (T1078) with moderate to high confidence (80%), supported by evidence indicating potential employee credentials for Hyatt’s internal CMS compromised and Exploit Public-Facing Application (T1190) with moderate confidence (50%), supported by evidence indicating attack targeting Hyatt Place Chelsea, interconnected systems. Under the Execution tactic, the analysis identified User Execution: Malicious File (T1204.002) with moderate confidence (60%), supported by evidence indicating ransomware attack targeting the hotel. Under the Credential Access tactic, the analysis identified OS Credential Dumping (T1003) with moderate to high confidence (70%), supported by evidence indicating employee credentials for Hyatt’s internal CMS compromised and Credentials from Password Stores (T1555) with moderate confidence (60%), supported by evidence indicating employee names, contact details, signatures exposed. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating 48.5 GB of sensitive data stolen, including invoices, expense reports and Data from Information Repositories (T1213) with moderate to high confidence (80%), supported by evidence indicating partner company data, employee credentials for CMS accessed. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (80%), supported by evidence indicating 48.5 GB of data listed on dark web leak site for sale. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with moderate to high confidence (70%), supported by evidence indicating ransomware attack targeting Hyatt Place Chelsea. Under the Defense Evasion tactic, the analysis identified Valid Accounts (T1078) with moderate to high confidence (70%), supported by evidence indicating employee credentials for CMS may enable unauthorized access and Hide Artifacts: Hidden Window (T1564.003) with moderate confidence (50%), supported by evidence indicating ransomware attack with no confirmed detection details. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.

Initial Access
Valid Accounts (80%)
Exploit Public-Facing Application (50%)
Execution
User Execution: Malicious File (60%)
Credential Access
OS Credential Dumping (70%)
Credentials from Password Stores (60%)
Collection
Data from Local System (90%)
Data from Information Repositories (80%)
Exfiltration
Exfiltration Over C2 Channel (80%)
Impact
Data Encrypted for Impact (70%)
Defense Evasion
Valid Accounts (70%)
Hide Artifacts: Hidden Window (50%)

Sources & References