When you leave your computer, you don’t want somebody else getting unauthorized access to it. Setting an automatic logoff timer ensures that it’s not susceptible when you step away for an extended period. This can be easily done on both Windows and Mac operating systems.

Computer and mobile device operating systems are regularly updated to stay in tune with technology requirements and to fix security holes. Be sure to install the updates to ensure your computer and devices have the latest protection.

To prevent unauthorized access to your Apple ID, set up two-factor authentication. Whenever a sign-in is attempted, both a correct password and a one-time code — sent to an iOS or macOS device registered with your Apple ID — are required for entry.

Backing up an iPhone via iTunes was once one of the most secure ways to make a full copy of all of your data and apps and transfer it to a new device. Starting with macOS Catalina, though, iTunes is no longer available. Backup now goes through Finder, but still provides options for encryption.

There are many variants of Linux (called “distributions”) that can serve as full desktop operating systems that replace or complement more popular options like Microsoft Windows and Apple macOS. To ensure that the Linux distribution you’re using is secure, use a long-term support release. Long-term support means that it’s guaranteed to receive regular security updates […]

If you have a Mac and need to share it with someone, you should set up a Guest account before doing so. This can be done from System Preferences -> Users and Groups. A Guest account provides minimal features, so that the user cannot do any damage to the operating system or your data.