2770
" In many cases , we received no response and in other cases , we were unable to convince manufacturers that TLS vulnerabilities such as Logjam required patching , " they wrote .
 patch vulnerability: required 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: required patching