Powering down your Mac/PC when you’re not using it hits several birds with one stone: It saves electricity, while reducing your exposure to malware infections and preventing unwanted manipulation by anyone with physical access to it.

If you have a laptop with an optical disc drive that you never use, consider swapping it out for an extra hard drive. Many older PCs and Macs can accommodate this switch, which provides some extra protection in case your main HDD fails or is compromised by malware.