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" In just the last few years , we 've seen more than a hundred million health records of American citizens breached in a couple of well - publicized incidents , " Terry Rice , vice president of IT risk management and chief information security officer at Merck & Company , told the Energy and Commerce Oversight and Investigations Subcommittee last week .
 ( data breach: breached,  American citizens: victim, health records: compromised data, a hundred million: number of data, last few years: time) 
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: breached,  American citizens: victim, health records: compromised data, a hundred million: number of data, last few years: time) 