1386
According to FireEye , the zero - day first came on their radar on January 25 , 2017 , when they discovered a FinSpy module exploiting the flaw .
 ( discover vulnerability: discovered,  the flaw: vulnerability, they: discoverer, the zero - day: vulnerability, January 25 , 2017: time, FireEye: discoverer) 
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: discovered,  the flaw: vulnerability, they: discoverer, the zero - day: vulnerability, January 25 , 2017: time, FireEye: discoverer) 