Are you looking forward to protecting your MacBook? Well, this requires you to change your security preferences on your Mac.

Apple is trying to make improvements to Mac’s security features. Default settings in a MacBook might be too rigid for MacBook users. A MacBook user who wants to improve his/her MacBook’s flexibility can do so by adding a few tweaks to its security settings.

Practicing how to change security settings on a Mac is easy, but you must be aware of any changes that might negatively affect your MacBook’s apps’ performance.

So, be ready to learn the complete guide on how to change security preferences on MacBook and make them work best for you.

How to Change Security Preferences on MacBook

Method 1) Access your Mac Security Settings:

How to access your Mac’s security settings?

Your MacBook offers you built-in security and privacy features. These features will protect the sensitive data stored on your MacBook. Privacy settings in a MacBook aren’t fixed, so you can control and adjust the settings to meet your unique security preferences.

To change your security preferences and adjust your security preferences on your MacBook, follow the given step-by-step instructions:

  • Visit System Preferences and click on Security & Privacy.
  • You will see four key tabs on the screen, i.e., General, FileVault, Firewall, and Privacy.
  • Just begin tweaking these four key tabs to meet your requirements.

NOTE: You might find that some security and privacy settings can’t be easily changed on your Mac. This issue may arise due to some of the Mac’s security and privacy greying out. You can fix this security problem by just clicking on the padlock icon at the bottom. Next, you will have to enter your administrative password to unlock your security preferences.

Method 2) Activate Password Lock on the General Tab

How to activate password lock on MacBook?

Restricting access to your MacBook when it’s unattended by you is essential. The activation of the password lock will ensure that no one will be able to log in to your device when it’s in sleep or screensaver mode. For this, the other person has to know the password.

Follow the given steps to activate the password lock on your MacBook:

  • Visit the System Preferences section on your Mac and press the Security & Privacy tab.
  • Now, open the General tab followed by tapping on the small padlock.

NOTE: The padlock will be located in the bottom left corner of the MacBook screen.

  • Fill in your admin password.
  • Check the box for the “Require password” option once the MacBook is on sleep mode or screen saver mode.
  • A drop-down menu appears on the screen, from the list, choose your preferred time duration for activation of the password requirement.

NOTE: Try to set the password duration to default immediately as the safest option.

Also, check the box to disable automatic login. If you miss out on this step, anyone else can log in to your account.

How to Change Security Preferences on MacBook

Method 3) Use FileVault to secure your content stored on MacBook:

How to enable FileVault on your MacBook?

FileVault is an application that encrypts data on your hard drive automatically. Once you enable FileVault, no one can access the contents stored in your MacBook without your password or recovery key.

NOTE: Your MacBook’s speed might suffer a downfall with the use of this application.

However, you can take a chance to use this feature to secure sensitive data stored on your MacBook. It always boosts up MacBook’s security and privacy.

Follow the following step-by-step guide to turn on FileVault on your MacBook:

  • Go to FileVault and click on the padlock option available here.
  • To make the appropriate changes to your security settings, click ‘Turn On FileVault

NOTE: The encryption of FileVault might take some time, so it’s advisable to do this step when you don’t have any urgent work from Mac.

Congratulations, your MacOS will encrypt your entire hard drive and lock it with the preferred password set by the user.

Method 4) Use Firewall to secure the incoming connections on MacBook:

How to turn on the firewall on your MacBook?

If your MacBook device has such apps and services which require incoming connections to work, it’s a matter of risk because these Mac apps on MacBook devices might lead to malicious software.

As a solution, a Firewall(network filter) lets you control incoming connections. Classic Firewall filters the per-port basis Service, which offers you far more settings flexibility.

Follow the given step-by-step instructions to turn on Mac’s firewall:

  • Go to System Preferences on your MacBook
  • Just click on the Security & Privacy option.
  • Now, tap on the Firewall tab followed by selecting ‘Turn On Firewall

NOTE: Suppose the Turn On Firewall option is inactive on your Mac. Click on the lock in the bottom left corner. Just type in your administrator password to unlock the same.

  • Click “Firewall Options” to avail yourself with the power of managing your connections.

NOTE: In this step, you have two options: either block incoming connections from all apps or limit them to the built-in or signed apps.

Please keep in mind that certain apps might not function properly if you block all incoming connections. Even though, if you want to proceed for the sake of the device’s security, you can allow connections for built-in and signed apps approved by Apple.

How to Change Security Preferences on MacBook

Method 5) Use Safari to change the security settings on your MacBook

How to change your security settings in Safari?

Safari offers MacBook users advanced settings. The advanced settings are capable enough to protect your privacy and entire MacOS system from any unknown online threats.

Safari also prevents downloaded files from automatically opening without your permission. This also guarantees no accidental opening of virus-infected files.

Follow the given steps to restrict automatic file opening on a MacBook:

  • Open Safari on your MacBook
  • Click on Safari located on the menu bar
  • Now, select the option Preferences
  • Visit the General tab option
  • Go to the very bottom and uncheck the “open safe” files after downloading the checkbox.

NOTE: Your saved files will still download as usual.

How to Change Security Preferences on MacBook


Congratulations for reaching out to the end of the article. Now you very clearly know the top 5 methods to change the security preferences on your Mac.

Just pick the best preferred method or go for all the solutions to secure your MacBook Device from any outside threats.

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