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Recent months have seen a rise in attacks where hackers have threatened to release a company ’s intellectual property onto the net unless a ransom is paid .
 hackers: attacker; threatened to release a company ’s intellectual property: attack pattern; Recent months: 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:
 hackers: attacker; threatened to release a company ’s intellectual property: attack pattern; Recent months: time