2228
Last October , Ben Martin , a different researcher with the firm , discovered attackers scraping credit card numbers and exfiltrating them in obscure , sometimes publicly viewable image files .
 credit card numbers: compromised data; attackers: attacker; Last October: time
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:
 credit card numbers: compromised data; attackers: attacker; Last October: time