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The company published investigation results that found nearly 43 TB of enterprise data was exposed on cloud back - ends , including personally identifiable information ( PII ) .
 ( data breach: was exposed,  enterprise data: compromised data, cloud back - ends: victim, personally identifiable information ( PII ): compromised data, 43 TB: number of data) 
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: was exposed,  enterprise data: compromised data, cloud back - ends: victim, personally identifiable information ( PII ): compromised data, 43 TB: number of data) 