1880
On Monday , LastPass responded by explaining that the Google Project Zero man had reported a new client - side vulnerability in its browser extension .
 ( discover vulnerability: had reported,  Google Project Zero man: discoverer, a new client - side vulnerability: vulnerability, browser extension: vulnerable system) 
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: had reported,  Google Project Zero man: discoverer, a new client - side vulnerability: vulnerability, browser extension: vulnerable system) 