There are all kinds of things you can do to make the macOS more secure. You may not need to implement all of them, but having a few of them activated just makes good security sense. I am going to mention a few of these settings from time to time. Here are a some for your consideration.
Most of your security settings are in the System Preferences. The first one I want to mention is “Automatic Login” in the Users & Groups Preference Pane.
The first thing you might want to do is turn OFF “Automatic Login” and set your login to be a “List of users”, especially if you have more than one user on your Mac.
The next thing you need to do is to setup a login password in the “Security & Privacy” Pref Pane.
It is a good idea to require a password for logging into your Mac. In my case, I have it set to activate immediately after the sleep/screensaver activates. Even if you are using your Mac at home, you should still activate this setting. Your employer might require it or perhaps you just want to keep the little kids off the machine. Whatever the reason, set a password.
As you can see, this login setting is related to the sleep and screensaver settings.
The login password setting relies on how you have your display set. Mine is set to 3 minutes of inactivity. You can set yours to more or less time. But, when the screen goes off, you will have to log back in using a password. This is just good security.
By the way, while you are in the “Security & Privacy” preference area, you might consider setting a message when the screen locks.
This is an especially good idea if you are using a laptop. Click on the “Set Lock Message” button and set a message how someone can get in touch with you if they find your laptop.
There are other ways to secure your Mac. We will cover some of them occasionally.