What is the most deadly computer virus?

The most deadliest computer virus is the WannaCry virus. This virus attacks Microsoft Windows systems and encrypts the user’s data. The virus then demands a ransom from the user in order to decrypt their data. This virus was first discovered in May of 2017 and has since then caused much damage to many systems.

What is the most expensive computer virus?

As of May 2019, the most expensive computer virus is estimated to be WannaCry, which caused billions of dollars in damages. Originating in North Korea, the virus took advantage of a Windows vulnerability to spread rapidly around the world. WannaCry encrypted files on infected computers and demanded a ransom to decrypt them. Many organizations were unprepared for the attack and did not have adequate backups, leading to widespread panic and disruption.

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