"If it's only in one place, it’s not backed up" really tells you all you need to know.

What does it mean to mine something that doesn't physically exist? And why might it use so much electricity?

You can and should be aware of and control your Facebook privacy settings.

We are often advised to trust only "reputable" sites. How do you tell if a site or service has a good reputation?

Yes, password managers put all your information in one place. It better be a very good place.

Partitions allow a single physical disk drive to be treated as if it were multiple disks.

A longer password of repeating characters is more secure than a short complicated password -- but there's more to security than cracking.

SMS messaging has some serious security vulnerabilities, but does that mean you should always avoid it? No.

Strong passwords are important, but they don't protect you from everything. I'll look at other ways your account can be compromised.

Backing up is important, but terms like "full", "incremental", and "differential" can easily confuse. I'll look at what these terms mean.