It's very, very tough to get in if you use 128-bit encryption. That's 32 characters selected from 0-9,a,b,c,d,e,f that you'd have to guess in the right order. If you're talking about professional or government special interests wanting your info, they'll find an easier way to tap you instead. I hope you are never that "popular!"
These guys can give you much to consider.
Thank you,
entree-