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Enraged India first reacted on Twitter , and after that , the hacktivist group Anonymous India claimed that they were responsible for 1.7 million Snapchat users ’ data leak .
 ( data breach: data leak,  1.7 million: number of data, they: attacker, the hacktivist group Anonymous India: attacker, Snapchat users: 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: data leak,  1.7 million: number of data, they: attacker, the hacktivist group Anonymous India: attacker, Snapchat users: victim) 