They reported that at around eleven-thirty in the morning computers across the country abruptly stopped working. ATMs were failing. Later the news got worse. There were reports that the automatic radiation monitors at the old Chernobyl nuclear plant couldn’t operate because the computers that controlled them went offline. Some Ukrainian broadcasters briefly went off the air; when they came back, they still could not report the news because their computer systems were frozen by what appeared to be a ransomware notice. Ukraine had suffered cyberattacks before. But not like this one.
