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It ’s a new month which means another security patch from Google has been released and it ’s currently rolling out to Pixel and select Nexus devices .
 patch vulnerability: rolling out
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: rolling out