Why is patching still so important to mitigate WannaCry
Many think it is safe now, because someone found a kill-switch. That is wrong, totally wrong!
Mitigate the WannaCry risk without DSC
Here is a very simple way to disable SMBv1 with PowerShell DSC
Check if all WannaCry related Hotfixes are installed
You can and should check all systems in your Active Directory