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The average cost of a data breach for U.S. companies is $ 7.4 million , or $ 225 per lost or stolen record , a June 2017 study by IBM and the Ponemon Institute , a Traverse City , Michigan , researcher , found .
 ( data breach: a data breach,  U.S. companies: victim, lost or stolen record: compromised data, June 2017: time, $ 7.4 million: damage amount, $ 225: damage amount) 
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: a data breach,  U.S. companies: victim, lost or stolen record: compromised data, June 2017: time, $ 7.4 million: damage amount, $ 225: damage amount) 