ログイン試行プラグインを制限する代わりに？
WP Cerber is the best possible alternative and drop in replacement for Limit Login Attempts plugin with a bunch of security features
WP Cerber Security 1.0
This brand new plugin inspired by Limit Login Attempts plugin. That was useful plugin. It worked fine for many of my client's sites for years. But now Limit Login Attempts is obsolete. Welcome WP Cerber!