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The most significant attack , the leaking of thousands of private emails between senior members of the DNC to Wikileaks by Fancy Bears , lead to the resignation of DNC Chair Debbie Wasserman - Schultz .
 private emails: compromised data; senior members: victim; the DNC: victim; Fancy Bears: attacker; thousands: 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:
 private emails: compromised data; senior members: victim; the DNC: victim; Fancy Bears: attacker; thousands: number of data