1020
The problem is that researchers have discovered numerous vulnerabilities in ME over the last few years ; Positive Technologies revealed one in 2017 that allowed full takeover of ME via USB ( it 's since been fixed ) .
 patch vulnerability: been fixed
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: been fixed