1709
It ’s worth noting that while some of the vulnerabilities have been classified as critical and high severity by Cure53 , NTP developers have only assigned medium , low and informational - level severity ratings to the discovered flaws .
 discover vulnerability: have been classified
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:
 discover vulnerability: have been classified