1075
“ We performed an investigation to identify other potentially similar methods and ensure that our fix addresses [ sic ] more than just the issue reported , ” Microsoft said through a spokesman , who answered emailed questions on the condition of anonymity .
 patch vulnerability: performed
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: performed