A piece of software is attacking hundreds of computers across Ukraine, according to cyber security researchers.
The malware wipes computers – not only removing files but making them difficult or impossible to get back to normal, warned research company ESET.
The company found the software on Wednesday afternoon, hours before Russia began an invasion of Ukraine.
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It followed a number of cyber attacks including distributed denial of service attacks that had knocked official Ukrainian government websites offline.
Now researchers have found the software, which erases important files from the computer so that data