KillSec

KillSec ransomware hits Brazil’s healthcare IT supply chain, exposing tens of thousands of records

Cybercrime, News, Policy, Privacy, Risk, Vendors

September 16, 2025

KillSec has claimed responsibility for a September 2025 attack on Brazil’s healthcare software provider MedicSolution, breaching the healthcare IT supply chain and exposing more than 34 GB of sensitive health data across clinics and laboratories, including medical and minor records.