Kyiv, 02 November 2026
Ukraine issued emergency radio warnings about possible radioactive exposure in Kyiv on 1 November 2026 after hackers compromised the country’s civil emergency-alert system, according to authorities and five media reports.
The compromised system sent alerts instructing residents of Kyiv to take shelter and, in a separate message, warned of possible radioactive exposure. Ukrainian authorities subsequently issued emergency warnings and advised the public to follow official instructions, although the verified reporting does not specify the full content or duration of every alert.
Ukraine’s Ministry of Warnings confirmed that the civil warning system had been hacked. The verified facts do not establish who carried out the intrusion, how the system was accessed, or whether any harmful radiation exposure actually occurred.
