COLT (City of London Telecommunications)
Victim
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.
Incidents
- August 12, 2025: British COLT Telecom hit by WarLock Ransomware
