Default [Q] Visibility of Phone using Microsoft Exchange

This might be a little off topic or expertise in this forum, but you never know.

I have my own personal phone (Verizon Note 3) connected to my companies MS Exchange to view my work email. My question is, what visibility do they have or can they have into my phone? IE, I have other personal emails set up (gmail for example) and use my phone for texts as well. Note: I have set SMS to NOT sync with Exchange.
I believe I've read they have access to wipe my phone and/or delete my account, but cannot visibly read stuff such as texts or emails on my phone. I also read they COULD have access to these kinds of things if it was ISSUED by them and have it set up by them (which it is not).

Thoughts?