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By exploiting this vulnerability , attackers could completely take over user accounts , and access victims ’ personal and group conversations , photos , videos and other shared files , contact lists , and more .
 attackers: attacker; exploiting this vulnerability: attack pattern; take over user accounts: attack pattern; personal and group conversations: compromised data; photos: compromised data; videos: compromised data; shared files: compromised data; contact lists: compromised data; victims: victim
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:
 attackers: attacker; exploiting this vulnerability: attack pattern; take over user accounts: attack pattern; personal and group conversations: compromised data; photos: compromised data; videos: compromised data; shared files: compromised data; contact lists: compromised data; victims: victim