Windows service to block failed logon attempts The service is notified on a logon failure and then creates a rule in Windows Firewall to block the attacker. You can add ipaddress to a whitelist file and it wont block them. You can read any blocks it has made in the Windows application log, Eventviewer. To Install run the install.bat as administrator. Don't forget to start the service. Any comments of changes you can email me terence@ctec.co.nz