I was recently intrigued to learn that only half of the respondents to a survey said that they used disk encryption. Android, iOS, macOS, and Windows have been increasingly using encryption by default. On the other hand, while most Linux installers I’ve encountered include the option to encrypt, it is not selected by default.
Whether it’s a test bench, beater laptop, NAS, or daily driver, I encrypt for peace of mind. Whatever I end up doing on my machines, I can be pretty confident my data won’t end up in the wrong hands if the drive is stolen or lost and can be erased by simply overwriting the LUKS header. Recovering from an unbootable state or copying files out from an encrypted boot drive only takes a couple more commands compared to an unencrypted setup.
But that’s just me and I’m curious to hear what other reasons to encrypt or not to encrypt are out there.
Most mobile/laptop devices should be encrypted by default. They are too prone to loss or theft. Even that isn’t sufficient with border crossings where you are probably better off wiping them or leaving them behind.
My desktop has no valuable data like crypto, sits in a locked and occupied house in a small rural community with relatively low crime (public healthcare, social security, aging population). I have no personal experience of property theft in over half a decade.
I encrypt secrets with a hardware key. They are only accessed as needed. This is a much more appropriate solution than whole disk encryptiom for my circumstances. Encrypting Linux packages and steam libraries doesn’t offer any practical benefit and unlocking my filesystem at login would not protect from network exfiltration which is a more realistic risk. It adds overhead.and another point of failure for no real benefit.