As ransomware attacks become more common, companies have frequently decided to turn to purchasing bitcoin as a way to quietly pay their attackers, a cybersecurity expert told CNBC's "Mad Money."
Udi Mokady, co-founder, chairman and CEO of CyberArk, explained companies often choose to pay a ransom in an effort to retrieve their files, and purchase bitcoin "in some state or fashion" to pay the hackers off.
"That's the requirement of most of these hackers," he said.
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