Incident Score: Analysis & Impact (MCK1777861431)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of McKay'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 McKay 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 McKay breach identified under incident ID MCK1777861431.
The analysis begins with a detailed overview of McKay's information like the linkedin page: https://www.linkedin.com/company/mckay, the number of followers: 5292, the industry type: Appliances, Electrical, and Electronics Manufacturing and the number of employees: 324 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 749 and after the incident was 642 with a difference of -107 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 McKay and their customers.
On 30 April 2026, McKay disclosed Ransomware issues under the banner "McKay Ransomware Attack".
One of New Zealand’s largest privately owned electrical contractors, McKay, was targeted in a cyberattack in January 2026 after being listed as a victim on the darknet leak site of the ransomware group Mnt6.
The disruption is felt across the environment, affecting One internal device, and exposing True.
In response, teams activated the incident response plan, moved swiftly to contain the threat with measures like Isolated and contained the breach, and stakeholders are being briefed through Notified all affected customers and relevant parties.
The case underscores how Ongoing, with advisories going out to stakeholders covering All affected customers were notified.
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 confidence (60%), supported by evidence indicating unauthorized access on one internal device and Exploit Public-Facing Application (T1190) with lower confidence (40%), supported by evidence indicating attack vector not specified, but ransomware group involved. Under the Execution tactic, the analysis identified User Execution: Malicious File (T1204.002) with moderate to high confidence (70%), supported by evidence indicating ransomware attack detected on internal device. Under the Persistence tactic, the analysis identified Valid Accounts (T1078) with moderate confidence (50%), supported by evidence indicating unauthorized access suggests account compromise. Under the Defense Evasion tactic, the analysis identified File and Directory Discovery (T1083) with moderate confidence (60%), supported by evidence indicating ransomware group Mnt6 likely conducted reconnaissance and Impair Defenses: Disable or Modify Tools (T1562.001) with moderate confidence (50%), supported by evidence indicating breach contained, but evasion tactics likely used. Under the Credential Access tactic, the analysis identified OS Credential Dumping (T1003) with moderate confidence (60%), supported by evidence indicating unauthorized access suggests credential compromise. Under the Discovery tactic, the analysis identified File and Directory Discovery (T1083) with moderate to high confidence (70%), supported by evidence indicating ransomware attack implies discovery phase and System Information Discovery (T1082) with moderate confidence (60%), supported by evidence indicating targeted critical infrastructure provider. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating data exfiltration confirmed by ransomware group. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (80%), supported by evidence indicating listed on darknet leak site; data exfiltration confirmed. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with moderate to high confidence (70%), supported by evidence indicating ransomware attack implies encryption for impact. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- McKay Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/mckay/incident/MCK1777861431
- McKay CyberSecurity Rating page: https://www.rankiteo.com/company/mckay
- McKay Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/mck1777861431-mckay-ransomware-january-2026/
- McKay CyberSecurity Score History: https://www.rankiteo.com/company/mckay/history
- McKay CyberSecurity Incident Source: https://www.cyberdaily.au/security/13537-exclusive-kiwi-electrical-contractor-confirms-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