First, run a site backup -- both the database and static files on the server (e.g., theme files, image uploads). Ideally you'll also know or figure out how to restore the site with said backup. The plugin UpdraftPlus has a free tier you might start with. I use it on a personal site to run daily backups automatically, and have used it on employer websites in the past. You should be running daily backups if you... Source: 11 months ago

The initial yes. Once encrypted you can trigger remote via intune/sccm/MDM https://docs.microsoft.com/en-us/windows/security/information-protection/bitlocker/bitlocker-overview. - Source: Hacker News / almost 2 years ago

On linux it you can achive it via LUKS, on windows with the help of bitlocker or preferably veracrypt. Source: about 2 years ago

What os are you using? If it happens to be a “pro” version of windows you could use bitlocker full-drive encryption which is built-in. There is one known vulnerability which involves gaining access to the RAM within seconds of shutdown, but that’s easily averted by keeping the computer in your possession for a minute or two after shutting it down. Source: about 2 years ago

There's additional info about bitlocker and tpm here. Source: over 2 years ago

There is also bitlocker drive encryption. That is one way to secure your data if you are worried someone can physically remove your drives. https://docs.microsoft.com/en-us/windows/security/information-protection/bitlocker/bitlocker-overview. Source: over 2 years ago