3166
“ As many people use the same login credentials to log in to online services , hackers try to use login credentials they get to gain access into other accounts . ”
 ( data breach: gain access,  accounts: compromised data, use login credentials: attack pattern, hackers: attacker) 
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: gain access,  accounts: compromised data, use login credentials: attack pattern, hackers: attacker) 