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Colt Technology Services

Colt Technology Services Vendor Cyber Rating & Cyber Score

colt.net

Colt Technology Services (Colt) is a global digital infrastructure company which creates extraordinary connections to help businesses succeed. Powered by amazing people and like-minded partners, Colt is driven by its purpose: to put the power of the digital universe in the hands of its customers, wherever, whenever and however they choose. Since 1992, Colt has set itself apart through its deep commitment to its customers, growing from its heritage in the City of London to a global business spanning 40+ countries, with over 6,000 employees and more than 80 offices around the world. Colt’s customers benefit from expansive digital infrastructure connecting 32,000 buildings across 230 cities, more than 50 Metropolitan Area Networks and 250+


CTS A.I CyberSecurity Scoring

CTS
Company Information
Website:http://www.colt.net
Employees number:5,063
Number of followers:292,523
NAICS:517
Industry Type:Telecommunications
Homepage:colt.net
CTS Risk Score (AI oriented)
Between 600 and 649
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CTSTelecommunications
Updated:
01/09/2026
630/1000
Poor
Caa
AaaAaABaaBaBCaaCaC
Powered by our proprietary A.I cyber incident model
✖ Insurance prefers TPRM score to calculate premium
CTS Global Score (TPRM)
xxxx
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CTSTelecommunications
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Score locked
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CTSPoor
Current Score
630Caa (POOR)
01000
3 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
OCTOBER 2026
633Before Incident
SEPTEMBER 2026
630Before Incident
AUGUST 2026
626Before Incident
JULY 2026
625Before Incident
JUNE 2026
621Before Incident
MAY 2026
616Before Incident
APRIL 2026
614Before Incident
MARCH 2026
610Before Incident
FEBRUARY 2026
606Before Incident
JANUARY 2026
602Before Incident
DECEMBER 2025
595Before Incident
NOVEMBER 2025
593Before Incident
AUGUST 2025
734Before Incident
Ransomware
18 Aug 2025 • CTS
Colt

WarLock Ransomware Attack on Colt and Hitachi

577After Incident
CRITICAL-157
COL403081825
Colt, a UK-based telecommunications provider, was targeted by the emerging WarLock ransomware group, which claimed to have exfiltrated over one million sensitive documents. The stolen data allegedly includes executive emails, employee salary details, financial records, customer contracts, internal personal information, network architecture files, and software development documents. The group advertised the data for sale on a Russian cybercrime forum for $200,000, signaling a high-stakes breach with potential financial, operational, and reputational fallout. Colt acknowledged the incident, confirming system disruptions and ongoing investigations with third-party cybersecurity experts to restore impacted internal systems. While the company did not confirm the data theft, the nature of the exposed information—spanning employee, financial, and proprietary technical data—suggests severe internal and external risks. Experts criticized Colt’s reactive posture, highlighting vulnerabilities in threat detection against advanced ransomware tactics. The attack underscores the critical exposure of service providers, whose compromised networks can enable further intrusions into customer environments.
INCIDENT DETAILS -
TYPE
Ransomware AttackData BreachData Theft
MOTIVATION
Financial GainProving Capabilities as a New Ransomware Group
IMPACT
Executive emailsEmployee salary informationFinancial recordsCustomer contractsInternal personal detailsNetwork architecture filesSoftware development filesInternal systems (Colt)Downtime: Ongoing (as of report)Disruption to internal systemsInvestigation and restoration effortsPotential reputational damage due to data breach and ransomware claimsHigh (due to exposure of personal and financial data)Potential risk (financial records compromised)
DATA BREACH
Executive emailsEmployee salary informationFinancial recordsCustomer contractsInternal personal detailsNetwork architecture filesSoftware development filesNumber Of Records Exposed: Over 1,000,000 documents (Colt)Sensitivity Of Data: High (includes personal, financial, and proprietary data)Data Exfiltration: Yes (alleged by WarLock)EmailsDocumentsFinancial RecordsContractsNetwork DiagramsSource CodePersonally Identifiable Information: Yes (employee and customer data)
AUGUST 2024
740Before Incident
Cyber Attack
12 Aug 2024 • CTS
Colt Technology Services

Cyber Incident at Colt Technology Services Disrupts Customer Portal and Voice API Platform

721After Incident
HIGH-19
COL151081525
Colt Technology Services, a multinational telecommunications provider, experienced a cyber incident that disrupted its customer portal (Colt Online) and Voice API platform for multiple days starting August 12, 2024. The attack targeted an internal system, separate from customer-facing infrastructure, with no confirmed compromise of customer or employee data. However, the incident forced Colt to proactively take systems offline, causing service outages and forcing customers to rely on email or phone support instead of online tools. Investigations suggested potential exploitation of SharePoint servers, with indicators of webshell implants and suspicious IP activity linked to cybercriminals. Firewall protections were urgently deployed across Colt’s EU infrastructure. While the company assured authorities and customers of containment measures, the prolonged disruption—including the unavailability of critical platforms—highlighted operational vulnerabilities. Colt’s response involved third-party cybersecurity experts and round-the-clock restoration efforts, though full recovery remained pending as of the latest updates. The financial or reputational fallout was not quantified, but the incident underscored risks to business continuity and customer trust in a sector reliant on uninterrupted digital services.
INCIDENT DETAILS -
TYPE
CyberattackService DisruptionPotential Unauthorized Access
IMPACT
Data Compromised: No evidence of customer or employee data being improperly accessedColt Online (customer portal)Voice API platformInternal systems (separate from customer-supporting systems)Ongoing as of August 16, 2024 (at least 4 days)Customer portal and Voice API platform remain offlineDisruption of support servicesCustomers advised to use email or phone for supportTechnical teams working around the clock for restorationFrustration reported due to inability to use systems like Colt OnlinePotential reputational damage due to prolonged service disruptionIdentity Theft Risk: None reported (no evidence of data access)Payment Information Risk: None reported
DATA BREACH
Type Of Data Compromised: None confirmedNumber Of Records Exposed: 0 (no evidence of improper access)Data Exfiltration: No evidencePersonally Identifiable Information: No evidence of compromise
DECEMBER 2019
774Before Incident
Ransomware
05 Dec 2019 • CTS
CyrusOne, CyrusOne Managed Service Customers and Louisiana Office of Technology Services: CyrusOne hit by REvil ransomware, impacting 6 managed service customers

Louisiana State Servers Disabled and CyrusOne Hit by REvil Ransomware

670After Incident
CRITICAL-104
COLCYR1788296947
Louisiana State Servers Disabled, CyrusOne Hit by REvil Ransomware in Latest Wave of Attacks In a proactive security measure, Louisiana’s Office of Technology Services temporarily disabled state servers, disrupting email, websites, and online applications for multiple agencies. Governor John Bel Edwards confirmed the move was a precaution to prevent the spread of ransomware, following a pattern of attacks targeting government entities and school districts over the summer. Meanwhile, data center provider CyrusOne confirmed that six of its managed service customers primarily in its New York data center experienced outages after a REvil ransomware attack encrypted devices on their networks. The company clarified that its colocation and network services remained unaffected, though an investigation with third-party experts is ongoing. Attackers left a ransom note, stating they had "the best specialists" to restore files, a tactic consistent with REvil’s operations. The incidents are part of a broader surge in ransomware activity. Since October 1, at least 15 U.S. organizations including healthcare networks, municipalities, and police departments have been targeted, according to research from Armor. Earlier this year, Texas declared a state of emergency after a coordinated REvil attack crippled local governments, though critical services were later restored. Security firm McAfee analyzed the malware, noting its sophisticated design, which executes rapidly to encrypt files while obfuscating Windows API calls to evade detection. The REvil strain, active since April, has been linked to multiple high-profile attacks, including those on managed service providers (MSPs). This year alone, 13 MSPs or cloud providers have fallen victim to ransomware, underscoring the growing threat to third-party infrastructure. Louisiana’s and CyrusOne’s responses highlight the increasing adoption of preemptive shutdowns to contain ransomware, even as attackers refine their tactics to maximize disruption. Law enforcement is assisting in the CyrusOne investigation, though no further details on attribution or ransom demands have been disclosed.
INCIDENT DETAILS -
TYPE
Ransomware
MOTIVATION
Financial gain (ransomware extortion)
IMPACT
Data Compromised: Files encrypted (data exfiltration possible)Systems Affected: State servers (Louisiana), managed service customer devices (CyrusOne)Downtime: Disrupted email, websites, and online applications (Louisiana); outages for CyrusOne customersOperational Impact: Temporary shutdown of state services (Louisiana); service outages for CyrusOne customersBrand Reputation Impact: Likely negative impact on CyrusOne and Louisiana state agencies
DATA BREACH
Type Of Data Compromised: Encrypted files (potential data exfiltration)Data Exfiltration: Possible (REvil known for double extortion)Data Encryption: Yes (files encrypted by REvil)

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