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Ciphr , a company which offers encrypted communications for BlackBerry 10 and Samsung Knox smartphones , claims that a rival firm are behind a data dump of its customers ' email addresses and their device 's IMEI numbers .
 IMEI numbers: compromised data; email addresses: compromised data; Ciphr: victim; a rival firm: attacker; customers: victim; device: 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:
 IMEI numbers: compromised data; email addresses: compromised data; Ciphr: victim; a rival firm: attacker; customers: victim; device: victim