Lester Holt

Dateline with Lester Holt FRIDAYS 9P/8

On Assignment: Growing Threat 'Ransomware'


On assignment in Romania, Cynthia McFadden caught up with another world-reknown hacker nicknamed "Tinkode". He's in a new line of work, and along with cybersecurity expert Madalin Dumitru, he warns of a growing cyber threat known as "ransomware."

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