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Only days before , Adobe issued an emergency Flash patch for a zero - day vulnerability that was being exploited , while in November Flash received a separate patch for one whose exploitation was believed to be imminent .
 patch vulnerability: issued
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: issued