How to change kernel security level from 0 to 1 after `sysctl kern.securelevel`

Question

When I run sysctl kern.securelevel on my Mac, it gives me a value of 0.

I'd like to increase the kernel security level on my computer. I want it to give me a 1.

Can I do that?

Answer 1

Have you tried:

sysctl kern.securelevel=1