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Once the ransom is paid , the hackers send their victim an electronic key to unlock their encrypted files , but if the payment is not made within a certain time frame the hacked files are lost forever .
 the hackers: attacker; their victim: 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:
 the hackers: attacker; their victim: victim