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Anonymous hackers have stolen and leaked 1.9 million email addresses and some 1,700 names and active phone numbers of Bell Canada customers .
 ( data breach: have stolen and leaked,  hackers: attacker, 1.9 million: number of data, email addresses: compromised data, names: compromised data, 1,700: number of data, phone numbers: compromised data, Bell Canada: victim, customers: 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: have stolen and leaked,  hackers: attacker, 1.9 million: number of data, email addresses: compromised data, names: compromised data, 1,700: number of data, phone numbers: compromised data, Bell Canada: victim, customers: victim) 