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CyrusOne

CyrusOne Vendor Cyber Rating & Cyber Score

cyrusone.com
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CyrusOne is a leading global data center developer and operator, delivering sophisticated digital infrastructure solutions worldwide. Headquartered in Dallas, Texas, the company operates over 55 data centers across the United States, Europe, and Japan. Specializing in comprehensive solutions for hyperscale and Fortune 1000 companies, CyrusOne enables customers to align with their unique business and sustainability goals, catering to the complex needs of AI-driven applications and services workloads. CyrusOne’s data centers offer unparalleled flexibility, enabling customers to modernize, simplify, and rapidly respond to changing demands. CyrusOne delivers tailored build-to-suit, colocation, and interconnection solutions that meet the


CyrusOne A.I CyberSecurity Scoring

Incident Details
CyrusOne
Company Information
Website:http://www.cyrusone.com/
Employees number:865
Number of followers:59,366
NAICS:5415
Industry Type:IT Services and IT Consulting
Homepage:cyrusone.com
Cyber Premium EstimationGet Supply Chain
CyrusOne Risk Score (AI oriented)
Between 700 and 749
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CyrusOneIT Services and IT Consulting
Updated:
19/06/2026
736/1000
Moderate
Ba
AaaAaABaaBaBCaaCaC
Powered by our proprietary A.I cyber incident model
✖ Insurance prefers TPRM score to calculate premium
CyrusOne Global Score (TPRM)
xxxx
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CyrusOneIT Services and IT Consulting
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Findings

CyrusOne
CyrusOneModerate
Current Score
736Ba (MODERATE)
01000
1 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
AUGUST 2026
737Before Incident
JULY 2026
736Before Incident
JUNE 2026
736Before Incident
MAY 2026
736Before Incident
APRIL 2026
735Before Incident
MARCH 2026
735Before Incident
FEBRUARY 2026
734Before Incident
JANUARY 2026
734Before Incident
DECEMBER 2025
733Before Incident
NOVEMBER 2025
733Before Incident
OCTOBER 2025
732Before Incident
SEPTEMBER 2025
732Before Incident
DECEMBER 2019
757Before Incident
Ransomware
01 Dec 2019 • CyrusOne
CyrusOne

CyrusOne Ransomware Attack

649After Incident
CRITICAL-108
CYR391523
CyrusOne has suffered a ransomware attack, and said they are currently working with law enforcement and forensics firms to investigate the attack. Stating that Six of their managed service customers, located primarily in New York data center, have experienced availability issues due to a ransomware program encrypting certain devices in their network. According to a copy of the ransom note, this was a targeted attack against the company's network. A copy of the ransomware executable that is believed to have infected the company's network was uploaded on VirusTotal.
INCIDENT DETAILS -
TYPE
Ransomware
MOTIVATION
Financial Gain
IMPACT
Devices in the networkNew York data centerDowntime: Availability issuesOperational Impact: Availability issues
DATA BREACH
Data Encryption: Encrypting certain devices
REFERENCES
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