464
Aside from dissuading victims from handing over money that may help fund further such attacks , they caution that it is not guaranteed the attackers will return control of people ’s computers even if they pay the assailants in bitcoin , a digital currency favored in such ransomware attacks that can be difficult to trace .
 victims: victim
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:
 victims: victim