1157
" Northrop Grumman and Equifax are coordinating with law enforcement authorities to assist them in their investigation of recent incidents involving unauthorized actors gaining access to individuals ’ personal information through the W - 2 online portal . "
 ( data breach: gaining access,  unauthorized actors: attacker, personal information: compromised data, the W - 2 online portal: victim, individuals: 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: gaining access,  unauthorized actors: attacker, personal information: compromised data, the W - 2 online portal: victim, individuals: victim) 