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INDIANAPOLIS — Officials at Scotty ’s Brewhouse are scrambling to deal with a data breach that leaked thousands of employee W - 2 forms to an unknown scammer .
 thousands: number of data; employee W - 2 forms: compromised data; an unknown scammer: 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: data breach 
  Option: victim, attacker, attack pattern, purpose, damage amount, tool, time, place, number of victim, compromised data, number of data 
Text: {0} 
Answer:
 thousands: number of data; employee W - 2 forms: compromised data; an unknown scammer: attacker