WordPress Plugins are basically developed to make the life of a website easier, more functional and productive at the same time, and these plugins are pretty good at doing that. However, there are also some plugins that may not be safe to use. . There are people or bots that try many username and password combinations to find someone who will successfully log into your .website. A security plugin will see this and block them from logging in and in some cases stopping them from accessing the website for a long time.