1227
The researcher went public with his findings and tipped off The Reg earlier this month after Redmond decided the issue did n't merit a security fix .
 ( discover vulnerability: went public,  The researcher: discoverer, his findings: vulnerability) 
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: went public,  The researcher: discoverer, his findings: vulnerability) 