malware
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Ukraine
Russia behind website-defacing cyberattack, Ukrainian officials claim
The statement from the ministry of digital development came a day after Microsoft said dozens of computer systems at an unspecified number of Ukrainian agencies had been infected with destructive malware disguised as ransomware.
Malware (a portmanteau of malicious software) is any software intentionally designed to cause disruption to a computer, server, client, or computer network, leak private information, gain unauthorized access to information or systems, deprive access to information, or which unknowingly interferes with the user's computer security and privacy