[tuatoru]

> My main concern with third party backups is the privacy aspect.

You want tarsnap.[1]

Edit to add: Colin Percival is the author of scrypt[2] and has worked extensively with FreeBSD's portsnap, so he knows what he's doing.

[1] http://www.tarsnap.com/

[2] https://en.wikipedia.org/wiki/Scrypt

[cperciva]

has worked extensively with FreeBSD's portsnap

To be more precise, I wrote FreeBSD's portsnap. (Also, freebsd-update.)