Hacks

Hackers on Friday temporarily shut down dozens of Ukrainian government websites, causing no major damage but adding to simmering tensions while Russia amasses troops on the Ukrainian border. Separately, in a rare gesture to the US at a time of chilly relations, Russia said it had arrested members of a major ransomware gang that targeted US entities.The events, though seemingly unrelated, came during a frenetic period of activity as the US publicly accused Moscow of preparing a further invasion of Ukraine and of creating a…