425
Security researchers at Preempt say they discovered and disclosed this vulnerability to Microsoft last August , and Microsoft has been working since then to create the patch released this week .
 patch vulnerability: released
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: phishing, data breach, ransom, discover vulnerability, patch vulnerability 
Text: {0} 
Answer:
 patch vulnerability: released