Tags ransom Businesses wary of ransomware attacks Tuesday, Jul 11, 2017 The recent WannaCry and ExPetr epidemics have proven to many businesses the crippling impact of having their files held to ransom by cybercriminals. CTB Locker ransomware threatens Vietnamese computers Monday, Jan 26, 2015 There are currently more than 1,300 computers in Viet Nam infected with the CTB Locker trojan-ransom and the number is rising.