Qlik Sense Enterprise on Windows and QlikView inherit the available protocols, cipher suites, key exchanges, and other security hardenings which are enabled on the Windows Server operating system.
This means that protection against known vulnerabilities caused by outdated ciphers/protocols can be mitigated by hardening the Windows Server OS.
Example of know cipher protocol vulnerabilities;
SWEET 32
Lucky 13
Note, Windows Server restart is required for a full effect of security hardening, which also includes if they are pushed to the server through Group Policy.
It is important to test and verify that all the software running on the server is still fully functional after completing gardening. For this reason, it is highly recommended to apply hardening in a UAT or staging environment before promoting to production servers.
