How can I hack my partner's phone without touching it?

There are different ways to hack someone's smartphone with no contact being made. Not a short time ago, it was thought that it is very difficult to hack someone's phone. But nowadays there are several ways to make it possible. In this weird and twisted world you might often wonder if your partner is faithful or not, so, just to be on the safe side, there are a variety of ways in which you can hack your partner's phone without having to tough it even once.