362
Ransomware attacks , which encrypt and hold a computer user 's files hostage in exchange for payment , extort millions of dollars from individuals each month , and comprise one of the fastest - growing forms of cyber attack .
 millions of dollars: price; individuals: victim; each month: time
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: ransom 
  Option: victim, attacker, payment method, attack pattern, damage amount, tool, time, price, place 
Text: {0} 
Answer:
 millions of dollars: price; individuals: victim; each month: time