Disable XML-RPC
Turns off the XML-RPC interface (xmlrpc.php), a common target for brute-force and pingback abuse. Use it when no app or service needs XML-RPC.
WPIDE Team 6 installs
Snippet Library
Security snippets for WordPress
Snippets that harden WordPress: turn off XML-RPC, hide the version number, stop user enumeration, add security headers and block risky uploads. Small, reviewable changes for site owners who want fewer attack points without a heavy security plugin.