2377
Wikileaks also said that the CIA " collects and maintains a substantial library of attack techniques ' stolen ' from malware produced in other states including the Russian Federation . "
 ( data breach: collects,  a substantial library of attack techniques: compromised data, the CIA: attacker) 
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: collects,  a substantial library of attack techniques: compromised data, the CIA: attacker) 