2114
In addition to Baratov , the Russian agents allegedly hired a 29 - year - old Latvian named Aleksey Belan , who pulled off the main hack against Yahoo , and stole the database involving 500 million user accounts .
 ( data breach: the main hack against,  Aleksey Belan: attacker, Yahoo: 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: the main hack against,  Aleksey Belan: attacker, Yahoo: victim) 