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Microsoft has published a patch for an Outlook vulnerability first reported in late 2016 , but the patch has been deemed incomplete and additional workarounds are needed , according to the security researcher who discovered it .
 discover vulnerability: first reported
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: first reported