Specialist Telecom Provider Under Cyber Attack

Uploaded on 2025-08-18 in NEWS-Cybersecurity News, FREE TO VIEW, BUSINESS-Services-IT & Telecoms

London based telecom company Colt Technology Services was cyber attacked on August 12 that has taken important customer systems offline. The company is working around the clock to restore the affected infrastructure.

Customers are being advised to email or call its support teams in place of online help and the company warns that response times may be longer than usual.

Founded in 1992 as City of London Telecommunications (COLT) and acquired by Fidelity Investments in 2015, Colt is a major telecommunications service provider operating in 30 countries across Europe, Asia, and North America. The company employs 75,000 km of fiber networks linking 900 data centers.

The disruption has affects customers who depend on number hosting and porting activities via the Voice API platform. Several other customer systems, including Colt Online, are also temporarily unavailable.

Colt Technology Services has said that it has detected a cyber incident on an internal system. The company emphasises that this system is separate from its customer infrastructure. “We detected the cyber incident on an internal system. This system is separate from our customer infrastructure,” the company said in a status update.

In the first few days after the incident, Colt communicated cautiously about the exact nature of the problem. It was only later confirmed that it was indeed a cyber incident and not a regular technical malfunction. Among the allegedly stolen documents are employees' salary details and personal information, which if true would contradict Colt's claim that no staff data was compromised.

Since discovering the incident, Colt has been working with external cybersecurity experts on the recovery. The technical team is doing everything possible to get the affected systems back up and running. Colt has informed the relevant authorities about the incident, as required for such security incidents. The company emphasises that the safety of its customers, employees, and business operations is its top priority.

Image: Midjourney

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