Accessing a computer over a network. Can be handy but also opens security holes if not set up right.

Features that restrict content and computer use. Handy for protecting kids online.

Settings that control what a user can access and modify. Useful for locking down sensitive files.

A secret phrase that grants access to an account. The longer and more random, the better.

For temporarily sharing your computer. Has very limited access to files and settings.

A normal account for day-to-day use. Can’t accidentally (or purposely!) mess up the system.

Like a super user. Has permission to install programs and change system settings.

A profile for logging into a system. Can be an administrator (full control) or standard user (limited).

Adding random data to a hash to make it harder to crack. A pinch of salt keeps your hash secure!

A digital fingerprint of some data. Used to verify that files haven’t been tampered with.