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Cornerstone Energy Services Inc.

Cornerstone Energy Services Inc. Vendor Cyber Rating & Cyber Score

cornerstoneenergyinc.com

Cornerstone Energy Services, Inc. provides engineering, survey and land services to the energy infrastructure marketplace. We provide a broad range of services critical to the initial phases of projects, right through completion and documentation. These services include: process, civil, mechanical and I&E engineering, project management, survey, mapping, and Right-of-Way acquisition. We have expertise and experience in both long linear projects as well as single-site facilities. Our clients are developers and operators of oil and gas pipelines and electric transmission lines. At Cornerstone, the strength of our business is based on adherence to fundamental values: • Safety of the public, our employees and our clients; • Advocacy for


CESI A.I CyberSecurity Scoring

CESI
Company Information
Website:http://www.cornerstoneenergyinc.com
Employees number:85
Number of followers:1,423
NAICS:22
Industry Type:Utilities
Homepage:cornerstoneenergyinc.com
CESI Risk Score (AI oriented)
Between 650 and 699
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CESIUtilities
Updated:
02/04/2026
693/1000
Weak
B
AaaAaABaaBaBCaaCaC
Powered by our proprietary A.I cyber incident model
Insurance prefers TPRM score to calculate premium
CESI Global Score (TPRM)
xxxx
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CESIUtilities
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Findings

CESIWeak
Current Score
693B (WEAK)
01000
1 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
SEPTEMBER 2026
699Before Incident
AUGUST 2026
698Before Incident
JULY 2026
697Before Incident
JUNE 2026
695Before Incident
MAY 2026
694Before Incident
APRIL 2026
693Before Incident
MARCH 2026
693Before Incident
FEBRUARY 2026
691Before Incident
JANUARY 2026
690Before Incident
DECEMBER 2025
689Before Incident
NOVEMBER 2025
688Before Incident
OCTOBER 2025
686Before Incident
JULY 2023
754Before Incident
Ransomware
25 Jul 2023CESI
Cornerstone Energy Services, Inc.

Cornerstone Energy Services Ransomware Incident

639After Incident
CRITICAL-115
COR205072825
The Maine Office of the Attorney General reported that Cornerstone Energy Services, Inc. experienced a ransomware incident on July 25, 2023, potentially affecting 500 individuals, with 200 residents specifically noted. The breach involved an external system breach (hacking) and compromised various personal information, including Social Security Numbers and driver's license numbers. Identity theft protection services for 24 months via LifeLock were offered to affected individuals.
INCIDENT DETAILS -
TYPE
Ransomware
IMPACT
Social Security Numbersdriver's license numbersIdentity Theft Risk: High
DATA BREACH
Social Security Numbersdriver's license numbersSensitivity Of Data: High

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