3687
Cyberzeist claims to have conducted the hack last month and has posted to Twitter what they claim are screen captures showing the FBI patching against the vulnerability , which appeared to permit public access .
 patch vulnerability: patching
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: patching