[tepitoperrito]

In the defensive security space there is also Kicksecure[0], which serves as the base for Whonix (a hardened linux distro that tries to provide strong privacy/anonymity via the Tor network). They have a wiki that goes over the desktop hardening features and tweaks that go into it.

[0] https://www.kicksecure.com/

[Ecio78]

What about Security Onion[0] ? Can anyone comment/compare?

[0] https://securityonionsolutions.com/software