When it comes to security, there is no WordPress-specific type of security that exists. All problems with security are common for all websites or applications.
WordPress security problems are of great interest, though, because it powers about 40% of the web and is open source. When one finds a vulnerability either in the WordPress core or plugins, other websites using it become vulnerable because they all use the same code.
On the other hand, there are a decent number of plugins that you can use to harden your website security.