Peter Westwood

WordPress Version Check provides you with an easy way of checking that you are running the most up-to-date WordPress version. The plugin checks an XML-RPC webservice every 15 minutes for update information and displays a message in the admin pages.
Note this plugin is no longer useful or supported so don’t bother installing it
See this blog post for more info: http://blog.ftwr.co.uk/archives/2009/05/26/retiring-wordpress-version-check/

WordPress Version Check

WordPress Version Check provides you with an easy way of checking that you are

munyagu

This plugin enhances the WordPress security. 
Effective such as the brute force attack. 
Includes the following specific functions.
1.Google reCaptcha v3 protect login screen from bot attacks.
2.Change the URL of the login screen, to avoid attacks on the login screen. 
 You can ward off tying for try to login for cracking, such as Brute-force attack. 
 Adding parameter to login URL so that default login url will hidden.
3.Block the display of author archive page 
 WordPress leaks your login id because of redirect author archive page by author id to login id. 
 (If you enter “your-site-url/?author=1”, you can try it.) 
 Simply hideing author archive page so that block to leak login id.
4.To limiting the part of the XML-RCP feature prevents the attack. 
 Block DDOS attacks against other sites with yor WordPress site, pingback enabled. 
 Block login via XML-RPC.
5.Disable the REST API function and reduce the risk of receiving external attacks. 
 You can disable all REST APIs and you can partially disable them. 
 (This feature will be removed in version 2.1.)
These features will be able to choose whether or not to enable.
This plug-in does not change the .htaccess 
You can use with confidence. 
Also it works in both Apache and nginx.
(photo by Keoni Cabral https://www.flickr.com/photos/keoni101/)

Barbwire Security

This plugin enhances the WordPress security.

WordPress Version Check vs Barbwire Security