If you have a web site it is almost a guarantee that someone is trying to hack into it.
Word Press is probably the most popular CMS (content management system) used today to build websites. Because so many sites are created with it. it is frequently targeted by hackers. How do they know it is a Word Press site? There are telltale footprints left behind. And you can search Google for those footprints to find most web sites built with Word Press.