A dosimeter shows the radiation level near the Chernobyl nuclear power plant in Ukraine, in a file photo taken last year. Automatic monitoring systems at the disaster site were taken offline by a cyber attack that forced staff to check radiation levels with hand-held meters on Tuesday. Photo: EPA

update | Powerful worldwide cyberattack hits Chernobyl nuclear site

The worldwide extortion scheme targeting Windows users began in Russia and Ukraine

28 Jun 2017 - 9:15AM