macOS Sonoma 14
macOS Ventura 13
macOS Monterey 12
macOS Big Sur 11.0
macOS Catalina 10.15
macOS Mojave 10.14
macOS High Sierra
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Table of Contents
macOS User Guide
- Welcome
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- What’s in the menu bar?
- Work on the desktop
- Search with Spotlight
- Quickly change settings
- Use Siri
- Get notifications
- Open apps from the Dock
- Organize your files in the Finder
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- Connect to the internet
- Browse the web
- Preview a file
- Take a screenshot
- Change your display’s brightness
- Adjust the volume
- Use trackpad and mouse gestures
- Use Touch ID
- Print documents
- Keyboard shortcuts
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- Apps on your Mac
- Open apps
- Work with app windows
- Use apps in full screen
- Use apps in Split View
- Use Stage Manager
- Get apps from the App Store
- Install and reinstall apps from the App Store
- Install and uninstall other apps
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- Create and work with documents
- Open documents
- Mark up files
- Combine files into a PDF
- Organize files on your desktop
- Organize files with folders
- Tag files and folders
- Back up files
- Restore files
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- Change System Settings
- Choose your desktop wallpaper
- Add and customize widgets
- Use a screen saver
- Add a user or group
- Add your email and other accounts
- Automate tasks with Shortcuts
- Create Memoji
- Change your login picture
- Change the system language
- Make text and other items on the screen bigger
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- Set up a Focus to stay on task
- Set up Screen Time for yourself
- Use Dictation
- Send emails
- Send text messages
- Make a FaceTime video call
- Edit photos and videos
- Use Live Text to interact with text in a photo
- Start a Quick Note
- Get directions
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- Work across devices using Continuity
- Use iPhone as a webcam
- Use iPhone with Desk View
- Stream audio and video with AirPlay
- Use one keyboard and mouse to control Mac and iPad
- Hand off between devices
- Unlock your Mac with Apple Watch
- Make and receive phone calls on your Mac
- Sync music, books, and more between devices
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- Manage Apple ID settings
- Set your Apple ID picture
- What is iCloud?
- What is iCloud+?
- Store files in iCloud Drive
- Share and collaborate on files and folders
- Manage iCloud storage
- Use iCloud Photos
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- Play music
- Listen to podcasts
- Watch TV shows and movies
- Read and listen to books
- Read the news
- Track stocks and the market
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- Apple Music
- Apple TV+
- Apple Arcade
- Apple News+
- Podcast shows and channels
- Manage subscriptions in the App Store
- View Apple family subscriptions
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- Guard your privacy
- Use Mail Privacy Protection
- Control access to your camera
- Use Sign in with Apple for apps and websites
- Set up your Mac to be secure
- Keep your data safe
- Create a passkey
- Understand passwords
- Keep your Apple ID secure
- Find a missing device
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- Get started with accessibility features
- Vision
- Hearing
- Mobility
- Speech
- General
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- Connect an external display
- Use the built-in camera
- Connect a Bluetooth device
- Use AirPods with your Mac
- Optimize your Mac battery life
- Optimize storage space
- Burn CDs and DVDs
- Control accessories in your home
- Use Windows on your Mac
- Resources for your Mac
- Resources for your Apple devices
- Copyright
![Protect your Mac from malware (1) Protect your Mac from malware (1)](https://i0.wp.com/help.apple.com/assets/65A8106E7C69B635140E606E/65A81072C0272B1FFA02DE51/en_US/f9979df145e31ea9fb18995403d2b2f6.png)
macOS has many features that help protect your Mac and your personal information from malicious software, or malware. One common way malware is distributed is by embedding it in a harmless-looking app.
You can reduce this risk by using software only from reliable sources. Privacy & Security settings allow you to specify the sources of software installed on your Mac.
On your Mac, choose Apple menu
>System Settings, then click Privacy & Securityin the sidebar. (You may need to scroll down.)
Go to Security, then choose the sources from which you’ll allow software to be installed:
App Store: Allows apps only from the Mac App Store. This is the most secure setting to protect your system from malware. All the developers of apps in the Mac App Store are identified by Apple, and each app is reviewed before it’s accepted. macOS checks the app before it opens the first time to be certain it hasn’t been modified since the developer shipped it. If there’s ever a problem with an app, Apple removes it from the Mac App Store.
App Store and identified developers: Allows apps from the Mac App Store and apps from identified developers. Identified developers are registered with Apple and can optionally upload their apps to Apple for a security check. If problems occur with an app, Apple can revoke its authorization. macOS checks the app before it opens the first time to be certain it hasn’t been modified since the developer shipped it.
In addition to apps, other types of files may not be safe. Scripts, web archives, and Java archives have the potential to cause harm to your system. Of course, not all files like this are unsafe, but you should exercise caution when opening any such downloaded file. An alert appears when you first try to open these files. See Open an app by overriding security settings.
See alsoWhat is malware on Mac?
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