Around noon, my company called me at home and told me that we were victims of a cyber attack and that all systems were encrypted. Attacks of this kind have been increasing recently.
[Using a snapshot captured by Superna] we restored the systems [approximately 150 virtual machines] from the snapshot in an encapsulated virtual environment.
In the end, this ensured the continued existence of our company. I am not sure if we would have been able to do this without Ransomware Defender.