Click: How to Secure a Mac Computer

This updated guide examines Click: How to Secure a Mac Computer and organizes the essential facts, background, and practical takeaways in clear American English.

Method 1of 10:

Enabling Two-Factor Authentication

1. OpenSystem Preferenceson your Mac. You'll find it in the Apple menu, which is at the top-left corner of the screen.
   • Two-Factor Authentication is different than two-step verification, as it requires at least two 'trusted' devices, like a Mac and an iPhone. For instance, when you first log into a new device, you'll receive a pop-up prompt on the other device. Click or tap Allow on the second device and enter a provided code on the first device.
   • To edit settings in System Preferences , you'll need to click the yellow lock located in the bottom right corner of each open window and enter your password.
2. Click theiCloudicon. It's the white icon with a blue cloud inside.
3. Click theAccount Detailsbutton. It's in the left panel.
   • If prompted to enter your password, follow the on-screen instructions to do so now.
4. Click theSecuritytab. It's at the top-center part of the window.
5. ClickTurn on Two-Factor Authentication. A confirmation message will appear.
6. ClickContinue.
7. Verify your phone number and clickContinue.

Method 2of 10:

Requiring a Password after Sleep

1. OpenSystem Preferenceson your Mac. You'll find it in the Apple menu, which is at the top-left corner of the screen.
2. ClickSecurity & Privacy. It's the gray house icon with a black circle inside.
3. Click theGeneraltab.
4. Select the option to "Require password [number] after sleep or screen saver begins. " You can change this setting to Immediately or set the duration between five seconds and eight hours.
   • If you're at work or in another public scenario, changing this setting to Immediately is a good idea. If you're at home, five minutes may be ideal.

Method 3of 10:

Using an Apple Watch to Unlock

1. OpenSystem Preferenceson your Mac. You'll find it in the Apple menu, which is at the top-left corner of the screen.
   • This feature enabling both Wi-Fi and Bluetooth on your Mac. It also requires the Apple Watch to be on your wrist. Both the Apple Watch and Mac must be signed in to iCloud using the same Apple ID.
   • To edit settings in System Preferences , you'll need to click the yellow lock located in the bottom right corner of each open window and enter your password.
2. ClickSecurity & Privacy. It's the gray house icon with a black circle inside.
3. Click theGeneraltab.
4. Click the box next to "Allow your Apple Watch to unlock your Mac. "

Method 4of 10:

Enabling Find My Mac

1. Create a guest user account. The idea behind creating a guest user account is to help you find your Mac if it's lost or stolen. If someone finds your lost Mac and logs in with the guest account, you can use Find My Mac to track its location. Here's how to create the guest user account:
   • Click the Apple menu and select System Preferences .
   • Click Users & Groups .
   • Select Guest User on the left.
   • Check the box next to "Allow guest users to log in to this computer." Guests can now log in to this Mac without a password. With FileVault turned on, guests can only access Safari. Guests cannot access the Mac remotely, and all their data are deleted when they log out.
2. OpenSystem Preferenceson your Mac. You'll find it in the Apple menu, which is at the top-left corner of the screen.
   • To edit settings in System Preferences , you'll need to click the yellow lock located in the bottom right corner of each open window and enter your password.
3. ClickSecurity & Privacy. It's the gray house icon with a black circle inside.
4. Click thePrivacytab. It's the last of the four tabs at the top of the window.
5. ClickLocation Servicesat the top of the left panel.
6. Check the box next to "Enable Location Services" if it isn't selected. It's at the top of the right panel.
7. Return to System Preferences and clickiCloud. You can click the back-arrow button near the top-left corner of the window to get back to System Preferences.
8. Click theiCloudicon.
9. SelectFind My Macin the left panel. You may have to scroll down in the panel to find it. A confirmation message will appear.
10. ClickAllowto confirm. Find My Mac is now enabled.

Method 5of 10:

Enabling Parental Controls

1. OpenSystem Preferenceson your Mac. You'll find it in the Apple menu, which is at the top-left corner of the screen.
   • To edit settings in System Preferences , you'll need to click the yellow lock located in the bottom right corner of each open window and enter your password.
2. ClickParental Controls.
3. Create or convert the account.
   • If the child doesn't already have an account, click ' Create a new user account with parental controls , and then follow the on-screen instructions to set up parental controls.
   • If you're logged in to your child's secondary account and want to enable parental controls, select Convert this account to a parental controls account and follow the on-screen instructions.
4. ClickContinueto save your changes.

Method 6of 10:

Limiting App Downloads

1. OpenSystem Preferenceson your Mac. You'll find it in the Apple menu, which is at the top-left corner of the screen.
   • To edit settings in System Preferences , you'll need to click the yellow lock located in the bottom right corner of each open window and enter your password.
2. ClickSecurity & Privacy. It's the gray house icon with a black circle inside.
3. Click theGeneraltab.
4. Select an option under "Allow apps downloaded from. "
   • Choose App Store if you only want to install apps that are available through the Mac App Store.
   • Choose App Store and identified developers if you want to be able to download non-App Store apps from developers that are trusted by Apple.

Method 7of 10:

Adjusting Privacy Options

1. OpenSystem Preferenceson your Mac. You'll find it in the Apple menu, which is at the top-left corner of the screen.
   • To edit settings in System Preferences , you'll need to click the yellow lock located in the bottom right corner of each open window and enter your password.
2. ClickSecurity & Privacy. It's the gray house icon with a black circle inside.
3. SelectLocation Servicesto manage how your location is used. Clicking this option at the top of the left panel displays your options on the right. Here you can manage the following:
   • Check the box next to "Enable Location Services" if you want to allow some or all apps to use your location. If you'd prefer not to use Location Services, make sure the box is not checked.
   • If Location Services are enabled, you can allow or block access to these apps:
     • Weather
     • Maps
     • Siri & Dictation
     • Calendar
     • Safari
   • Click Details on the System Services entry to adjust Location Services preferences for the following services:
     • Location-based suggestions
     • Time Zone & System Customization
     • Significant Locations
     • Location-Based Apple Ads
     • Find My Mac
     • HomeKit
     • Wi-Fi Networking
     • Wi-Fi Calling
   • Click Done to save your changes.
4. Control app access to other services. The other options in the left panel allow you to manage which apps can access those services. Here you can manage the following:
   • Click Contacts to enable or disable access to your contacts.
   • Click Calendars to enable or disable access to your calendars.
   • Click Reminders to enable or disable access to your reminders.
   • Click Photos to enable or disable access to your photos. Google Chrome, GIMP, Photoshop, and more may appear on this list.
   • Click Camera to enable or disable camera access to Zoom and other listed apps.
   • Click Microphone to enable or disable microphone access to apps like Slack, GarageBand, and others.
   • Click Accessibility to allow apps to control your Mac, like Chrome's remote desktop client.
   • Click Full Disk Access to grant full disk access to any app.
   • Click Automation to allow or not allow specific apps to control other apps, like Google Chrome controlling Finder.
   • Click Analytics to share Mac analytics with app developers.
   • Click Advertising to opt-out of receiving targeted ads in Apple apps on your Mac.

Method 8of 10:

Enabling the Firewall

1. OpenSystem Preferenceson your Mac. You'll find it in the Apple menu, which is at the top-left corner of the screen.
   • To edit settings in System Preferences , you'll need to click the yellow lock located in the bottom right corner of each open window and enter your password.
2. ClickSecurity & Privacy. It's the gray house icon with a black circle inside.
3. Click theFirewalltab. It's near the top-center part of the window.
4. Click theTurn on Firewallbutton. If the firewall is already on you can skip this step.
5. Click theFirewall Optionsbutton.
6. Click+to allow an app through the firewall. If you're having trouble using an app because it's being blocked by the firewall, click the + and select the app to add it to the list.
7. ClickOKto save your changes.

Method 9of 10:

Encrypting the Hard Drive with FileVault

1. OpenSystem Preferenceson your Mac. You'll find it in the Apple menu, which is at the top-left corner of the screen.
   • To edit settings in System Preferences , you'll need to click the yellow lock located in the bottom right corner of each open window and enter your password.
2. ClickSecurity & Privacy. It's the gray house icon with a black circle inside.
3. Click theFile Vaulttab. It's near the top-center part of the window.
4. ClickTurn on FileVault. FileVault is now enabled.
   • To learn about customizing FileVault, see How to Encrypt a Mac Hard Drive with FileVault 2.

Method 10of 10:

Disabling Unused Sharing Options

1. OpenSystem Preferenceson your Mac. You'll find it in the Apple menu, which is at the top-left corner of the screen.
   • To edit settings in System Preferences , you'll need to click the yellow lock located in the bottom right corner of each open window and enter your password.
2. Click theSharingicon. It's the blue folder with a black-and-yellow street sign inside.
3. Uncheck all options you aren't using. Here's a breakdown of your sharing options:
   • Screen Sharing: Allows other computers to remotely view your screen.
   • File Sharing: Other computers can remotely access your Mac's shared folders. This is actually really useful on a home network.
   • Printer Sharing: This shares a printer physically connected to your Mac with the local network. Another useful tool if other computers need access to the printer.
   • Remote Login: Allows other computers to remotely access your Mac using Secure Shell (SSH) and Secure File Transfer Protocol (SFTP).
   • Remote Management: Allows access using Apple Remote Desktop.
   • Remote Apple Events: Apps on other Macs can send Apple events to your Mac.
   • Internet Sharing: Broadcast your internet connection to other computers.
   • Bluetooth Sharing: Share files with other Bluetooth-enabled devices. If this is enabled, you can control how your Mac handles incoming files, as well as which files and folders are accessible to others.
   • Content Caching: This feature stores software updates, apps, and other content for all your Apple products so you're not downloading from Apple. Consider your Mac as a local iCloud server for updating an iPhone, iPad, Apple TV, and so on.