noun
a type of malicious software designed to block access to a computer system or data until a sum of money is paid
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The company's computer systems were attacked by ransomware, causing a significant data breach.
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My friend's laptop got infected with ransomware and now he can't access any of his files.
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I heard that new ransomware is going around, so make sure to keep your antivirus software updated.
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Ransomware is like a digital hostage-taker, holding your data for ransom until you pay up.