I installed CRYPTOMATOR yesterday and today added my first files to a Vault in my OneDrive directory.
Soon afterwards I received a message from Microsoft saying that they had detected signs of ransomeware on my OneDrive account and subsequently pointed out the encrypted files. Now I assume that it is the strange filenames and extensions that is triggering the alert, but I wondered if this is commonly encountered when using the software. I am using the 64-bit Home Edition of Windows 11.
Am having the same problems with OneDrive and Crytomator files.
This problem does not seem to be there with DropBox - as i share cryptomator files with my workgroup
Maybe Cryptomator can embed a secret code which identifies the file and Microsoft can detect it !!