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Also , during the analysis of ABCD ’s servers and computers , suspicious user accounts were discovered suggesting that hackers may have accessed portions of ABCD ’s network , ” the organization stated .
 ( data breach: have accessed,  hackers: attacker, network: victim, user accounts: compromised data, ABCD: victim) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: phishing, data breach, ransom, discover vulnerability, patch vulnerability, Arguments type: vulnerable system, capabilities, vulnerability, number of victim, issues addressed, compromised data, damage amount, common vulnerabilities and exposures, victim, patch number, number of data, tool, discoverer, time, purpose, place, payment method, releaser, vulnerable system version, attacker, supported platform, patch, price, vulnerable system owner, trusted entity, attack pattern. 
Text: {0} 
Answer:
 ( data breach: have accessed,  hackers: attacker, network: victim, user accounts: compromised data, ABCD: victim) 