From this page you can find our most up-to-date evaluation of the critical Apache Log4J vulnerability (https://logging.apache.org/log4j/2.x/security.html).
13.12.2021
As Introist does not utilise Log4J in any of its services, we believe that Introist is not vulnerable to this exploit.
Based on conducted investigation, we believe that infrastructure services utilised by Introist are safe as well.
In conclusion, at the moment we have no reason to believe that Introist is vulnerable to Log4Shell exploits.