534
There ’s plenty of evidence to suggest security vulnerabilities are increasing in Windows and across the industry , and Microsoft has clearly struggled to fix these two issues with plenty of notice .
 patch vulnerability: fix
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: fix