Russian Hackers Had Covert Access to Ukraine's Telecom Giant for Months

Ukrainian authorities disclosed that Russian state‑linked APT actors (Sandworm and the Russia‑linked Solntsepyok) had long‑standing access to Kyivstar infrastructure and executed a destructive attack that wiped thousands of virtual servers and devices, causing major outages for millions of customers; the SBU reported the compromise was prepared over months, restored services have been announced, and there is currently no evidence of subscriber data being compromised.