[Ans] what kind of virus, which started spreading last weekend, affected more than 200,000 victims in about 150 countries worldwide?

Europol director Rob Wainwright told the BBC that the cyberattack is “unprecedented in its scale,” and noted that it will likely continue.

A 22-year-old cybersecurity expert known as MalwareTech slowed the attack by registering a domain name he discovered in the ransomware’s code. 

Researchers have since discovered two new variations of the ransomware. One has been blocked with another domain name registration, but the other variant has no kill switch, but is only partially working.

it’s believed that the perpetrators have only raised around $20,000 in payments.