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Analyze » Perkins Coie » PER1781210099

Incident Score: Analysis & Impact (PER1781210099)

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

Rankiteo Score Impact Analysis

Rankiteo Incident Impact-59
Company Score Before Incident762 / 1000
Company Score After Incident703 / 1000
Company LinkView Perkins Coie Profile
INCIDENT NUMBERPER1781210099
Type of Cyber IncidentBreach
ATTACK VECTORUnauthorized Access
DATA EXPOSEDFiles exfiltrated
INCIDENT DATE31/12/2025
STATUSOngoing forensic investigation

Key Highlights From The Incident Analysis

  • Timeline of Perkins Coie'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 Perkins Coie 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 Perkins Coie breach identified under incident ID PER1781210099.

The analysis begins with a detailed overview of Perkins Coie's information like the linkedin page: https://www.linkedin.com/company/perkins-coie-llp, the number of followers: 61883, the industry type: Law Practice and the number of employees: 2815 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 762 and after the incident was 703 with a difference of -59 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 Perkins Coie and their customers.

Perkins Coie LLP recently reported "Perkins Coie Data Breach", a noteworthy cybersecurity incident.

Perkins Coie LLP reported a data breach in January 2024, during which an unauthorized third party accessed a user account and exfiltrated files from its network.

The disruption is felt across the environment, and exposing Files exfiltrated.

Formal response steps have not been shared publicly yet.

The case underscores how Ongoing forensic investigation, teams are taking away lessons such as Persistent threat of credential-based attacks and the need for robust access controls in professional services.

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 high confidence (90%), supported by evidence indicating unauthorized third party accessed a user account and Trusted Relationship (T1199) with moderate confidence (50%), supported by evidence indicating legal sector...prime targets for cyberattacks. Under the Credential Access tactic, the analysis identified Brute Force (T1110) with moderate confidence (60%), supported by evidence indicating credential-based attacks and Unsecured Credentials (T1552) with moderate to high confidence (70%), supported by evidence indicating persistent threat of credential-based attacks. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating exfiltrated files from its network and Data from Information Repositories (T1213) with moderate to high confidence (80%), supported by evidence indicating sensitive client information and confidential case details. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with high confidence (90%), supported by evidence indicating exfiltrated files from its network and Exfiltration Over Web Service (T1567) with moderate confidence (60%), supported by evidence indicating data breach...unauthorized third party accessed. Under the Defense Evasion tactic, the analysis identified Valid Accounts (T1078) with moderate to high confidence (80%), supported by evidence indicating accessed a user account. 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 (90%)
Trusted Relationship (50%)
Credential Access
Brute Force (60%)
Unsecured Credentials (70%)
Collection
Data from Local System (80%)
Data from Information Repositories (80%)
Exfiltration
Exfiltration Over C2 Channel (90%)
Exfiltration Over Web Service (60%)
Defense Evasion
Valid Accounts (80%)

Sources & References