547
Google disclosed a major Windows bug back in 2016 just 10 days after reporting it to Microsoft , and the company has revealed zero - day bugs in Windows in the past before patches are available .
 discover vulnerability: reporting
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:
 discover vulnerability: reporting