[yousry]

Why should I not use GRSecurity?

Comparison matrix;

https://grsecurity.net/compare.php

[a_bonobo]

I guess because of this:

>Since September 9, 2015, the availability of stable grsecurity patches has become limited to the commercial customers of grsecurity.

[pjmlp]

Probably because those devs didn't found another way of getting the community to pay for their bills.

[chrisbolt]

Why should I trust a page with checkboxes under GRsecurity and X's under everything else?

[Avshalom]

It's trustworthy, it's just misleading. GRsecurity is a whole suite of security related patches/modules that SELinux/Apparmor don't do and have never claimed to do because they're 'just' about MAC.

[ygaf]

There's nothing wrong with that.

[viraptor]

With RBAC you effectively have to create your own policy for the whole system. I'm not aware of any successful projects providing a full, generic profile.

But ideally, you could be using Grsec without RBAC, but with SELinux.