[rdl]

Security+ is the "easiest" of the big certs (I did CISSP with about 10 hours of prep, and probably didn't even need that, but I had been working in the field for 15y, read the Rainbow Books when I was 11, and enjoy security trivia for its own sake rather than for application only; it normally takes about 5x more time to prep for than Security+ vs. CISSP).

Security+ seems a bit more focused, and obviously vastly less comprehensive (Part of CISSP is some fairly esoteric and never-used theoretical models). In practice I'd say it's on par with CISSP.

https://www.isc2.org/dodmandate/default.aspx DoD considers Security+ to be level I or level II, CISSP to be ok up to level III, although prefers CISM or CISA for certain roles over CISSP.