Disable XML-RPC
Disable XML-RPC completely blocks the XML-RPC protocol in WordPress. XML-RPC was originally for remote publishing but is now a common target for brute force attacks and DDoS amplification. Attackers use it to try thousands of password combinations in single requests, bypassing normal login rate limiting. Unless you specifically need XML-RPC for Jetpack, mobile apps, or remote publishing tools, disabling it significantly improves security.