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Intel has issued fresh " microcode revision guidance " that reveals it wo n’t address the Meltdown and Spectre design flaws in all of its vulnerable processors – in some cases because it 's too tricky to remove the Spectre v2 class of vulnerabilities .
 patch vulnerability: has 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: has issued