Scrambling everything on a computer's drive so the data is unreadable without the sign-in.
Like keeping documents in a locked safe inside a locked office: a stolen laptop is just a locked box.
A consultant's laptop was stolen from a car. It held client files and had no drive encryption, so the owner had to assume every file was exposed and notify clients.
Cloud covers the Microsoft 365 or Google workspace settings that protect your data, and your IT provider can confirm drive encryption on each laptop.
Does it slow my computer?
On a modern machine, you will not notice it.

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