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macOS User Guide
- Welcome
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- Use Continuity across your devices
- Use your iPad as a second display
- Hand off between devices
- Insert photos and scans from iPhone or iPad
- Insert sketches from iPhone or iPad
- Copy and paste between devices
- Use Apple Watch to unlock your Mac and approve requests
- Make and receive phone calls on your Mac
- Control accessories in your home
- Send files between devices with AirDrop
- Use AirPods with your Mac
- Stream content to Apple TV
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- Understand passwords
- Use keychains to store passwords
- Reset your Mac login password
- Set up your Mac to be secure
- Guard your privacy
- Protect your Mac from malware
- Use Sign in with Apple for apps and websites
- Clear your Safari browsing history
- Manage cookies and other website data in Safari
- Find a missing device
- Resources for your Mac
- Resources for your Apple devices
malware
Malware is malicious software that includes viruses, worms, trojan horses, and other programs that can harm your Mac or your privacy. Malware can unintentionally be installed when you open attachments in email messages and download items from websites.
Some malware is simply annoying. More often, its intent is to control your Mac to collect personal and financial information, host illegal content, send spam, or harm other computers on the network.
Avoid opening or downloading items from email messages and websites unless you are certain that they come from a legitimate, trusted source. If you’re uncertain about the source, delete the item. You can always get it again later, after you make sure it isn’t malware.
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