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The same thing happened in 2015 , in a series of attacks called RansomWeb , where attackers used unpatched phpBB forums to hijack databases and hold websites up for ransom .
 hold websites: attack pattern; used unpatched phpBB forums to hijack databases: attack pattern; attackers: 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:
 hold websites: attack pattern; used unpatched phpBB forums to hijack databases: attack pattern; attackers: attacker