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LastPass engineers have Google researcher Tavis Ormandy to thank yet again for another busy few days after the British white hat found a second critical bug in the password manager .
 ( discover vulnerability: found,  the British white hat: discoverer, a second critical bug: vulnerability, password manager .: 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: found,  the British white hat: discoverer, a second critical bug: vulnerability, password manager .: vulnerable system) 