1309
Experts say the leak , which was mostly lines of computer code , was made up of a variety of “ zero - day exploits ” that can infiltrate Windows machines and then be used for espionage , vandalism or document theft .
 ( discover vulnerability: say,  Experts: discoverer, zero - day exploits: vulnerability, be used for espionage , vandalism or document theft: capabilities, infiltrate Windows machines: capabilities) 
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:
 ( discover vulnerability: say,  Experts: discoverer, zero - day exploits: vulnerability, be used for espionage , vandalism or document theft: capabilities, infiltrate Windows machines: capabilities) 