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According to researchers at Symantec Security Response , tracking ransom transactions would have been much more difficult if not for a bug in code that was supposed to create an individual bitcoin wallet for each victim : #WannaCry has code to provide unique bitcoin address for each victim but defaults to hardcoded addresses as a result of race condition bug — Security Response ( @threatintel ) May 16 , 2017 Because the code failed , it defaulted over the three preset wallets .
 create an individual bitcoin wallet: attack pattern; 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:
 create an individual bitcoin wallet: attack pattern; victim: victim