https://www.sophos.com/en-us/products/intercept-x.aspx
Stop Ransomware Before it Takes Your Files Hostage
Ransomware is the #1 malware attack affecting organizations today. It encrypts your files and holds them hostage until the ransom is paid, causing massive disruption to business productivity.
Sophos Intercept features CryptoGuard, which prevents the malicious spontaneous encryption of data by all forms of ransomware – even trusted files or processes that have been hijacked. And once ransomware gets intercepted, CryptoGuard reverts your files back to their safe states.