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The combined number of data stolen from these forums is more than 12,000,000 including 536,727 accounts from MerlinsMagicBitcoin.com which suffered a data breach in January 2017 , 514,409 accounts from BitcoinTalk.org forum which was hacked in May 2015 , 568,357 stolen from BTC-E.com back in October 2014 , 21,439 accounts from BTC4Free.com which was hacked in January 2014 , 21,439 accounts from BTC4Free.com which was also hacked in January 2014 .
 these forums: victim; 12,000,000: number of data
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: data breach 
  Option: victim, attacker, attack pattern, purpose, damage amount, tool, time, place, number of victim, compromised data, number of data 
Text: {0} 
Answer:
 these forums: victim; 12,000,000: number of data