1997
We regret , however , that information about some of our patients may have been accessed by an unauthorized third party due to an email “ phishing ” incident .
 ( data breach: have been accessed,  our patients: victim, information: compromised data, an unauthorized third party: attacker, an email “ phishing ” incident: attack pattern) 
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 been accessed,  our patients: victim, information: compromised data, an unauthorized third party: attacker, an email “ phishing ” incident: attack pattern) 