I see a lot of opinions that Debian stable is very secure because it receives security updates from a large community. Then i read that Debian does not update the kernel to newer versions so it does not get the latest security features of the kernel. Ubuntu LTS on the other hand seems like it is updating the kernel through the support of LTS verions. Should i go Ubuntu or Debian for security reasons?
Every distro has its pros and cons—Debian is meant for stability and uses LTS kernel, and they are patched, and most security patches are done or at least backported from upstream (new) kernels.
Ubuntu is better since they have good setup of AppArmor and confined. While Debian also has AppArmor it isn’t tight as Ubuntu. It’s majority case here.
SELinux used by fedora is known to have better security. Problem, no debian based distro uses it.