Install the secure your wordpress website Firewall Plugin. Stop and this plugin investigates requests with WordPress-particular heuristics that are straightforward to recognize attacks that are most obvious.
Protect your login credentials - Do not keep your login credentials where a hacker could find them. Store them offsite, and even offline. Roboform is for protecting them good , also. Food for thought!
It's a WordPress plugin. They are drop dead simple to set up, have all the features you need for a job such as this, and are relatively cheap, especially when compared to having to hire someone to get this done for you.
Black and whitelists phrases based on which area they look inside. (unknown/numeric parameters vs. known post bodies, remark bodies, etc.).
There are always going to be risks being online (or even just being alive!) And it's easy to get caught up in the fear. We often put the breaks on when we get caught up in the fear. This isn't a response. Simply take some common click over here now sense precautions, then forge ahead. It is going to have to be dealt with then, if something does happen and no amount of quaking in your will have helped. If nothing does, all important link is good and you have not made yourself ill.