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— Hacker Fantastic ( @hackerfantastic ) April 14 , 2017 But just hours later , Microsoft announced that many of the vulnerabilities were addressed in a security update released a month ago .
 ( patch vulnerability: were addressed,  the vulnerabilities: vulnerability, Microsoft: releaser, a security update: patch) 
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:
 ( patch vulnerability: were addressed,  the vulnerabilities: vulnerability, Microsoft: releaser, a security update: patch) 