4) In August 2018, a variant of WannaCry(WannaCrypt) forced TSMC to shut down several factories temporarily, this kind of virus is categorized as
(A) spyware
(B) ransomware
(C) logic bomb
(D) trap door

答案：登入後查看
統計： A(0), B(1), C(1), D(0), E(0) #2926610