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In the case of CloudPets , the brand allegedly made the mistake of storing the customer information in a publicly exposed online MongoDB database that required no authentication to access .
 ( data breach: a publicly exposed,  MongoDB database: victim, required no authentication to access: attack pattern, customer information: compromised data, CloudPets: 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: a publicly exposed,  MongoDB database: victim, required no authentication to access: attack pattern, customer information: compromised data, CloudPets: victim) 