2087
A group of hackers are allegedly threatening to remotely wipe millions of iPhones and iCloud accounts , unless Apple agrees to pay a ransom by April 7th .
 April 7th: time; Apple: victim; threatening to remotely wipe millions of iPhones and iCloud accounts: attack pattern; A group of hackers: attacker
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:
 April 7th: time; Apple: victim; threatening to remotely wipe millions of iPhones and iCloud accounts: attack pattern; A group of hackers: attacker