Cybersecurity and Infrastructure Security Agency (CISA) today alerted organizations across all critical U.S. infrastructure sectors about a recent ransomware attack that affected a natural gas compression facility. CISA says that after infiltrating the network, the attackers deployed a. ransomware payload to encrypt the. org’s IT and OT networks which led to “loss of availability”” impacting. human-machine interfaces (HMIs)
Source: the CISA alert says. The cyber attack did not impact any programmable. logic controllers (PLCs) on the affected networks because the. organization did not lose control of operations.”