INCIDENT: Colombian Utility, EPM, Suffers Ransomware Attack

Colombian energy company Empresas Públicas de Medellín (EPM) suffered a BlackCat/ALPHV ransomware attack last month, which ended up affecting financial operations and taking down online services.
EPM is one of Colombia’s largest public energy, water, and gas providers, providing services to 123 municipalities. The company generated over $25 billion in revenue in 2022 and is owned by the Colombian Municipality of Medellin.
On December 13, the company told 4,000 employees to work from home, with IT infrastructure down and the company's websites no longer available. EPM said the company was responding to a cybersecurity incident and provided alternative methods for customers to pay for services.

Incident Date

December 13, 2022



Estimated Cost

Unknown at this time, but this was a ransomware attack.

Type of Malware:

Threat Source:

No threat source identified


  • Ransomware Attack at Colombian Utility



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