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Google Project Zero researcher Thomas Dullien , aka Halvar Flake , discovered that attackers can trigger a memory - corruption issue in the engine if they can get Windows Defender and other affected security products to scan a specially - crafted file .
 discover vulnerability: discovered
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: discovered