Mac Security · Course 1
Gatekeeper & App Safety
How your Mac checks apps, and where safe apps come from.
- 1Gatekeeper and Notarization12 min · How your Mac checks a downloaded app before it opens.
- 2Where Mac Apps Should Come From11 min · The App Store, makers' own sites, and why pirated apps are risky.
- 3XProtect and Built-In Malware Protection11 min · The quiet malware guard inside every Mac, and how it stays current.
- 4System Integrity Protection10 min · The lock on macOS itself, and why no normal app needs it off.
- 5Challenge: The Forum Video Editor12 min · Help your cousin pick a safe video editor instead of a forum link.
Hands-on
Do it on the practice computer
Lessons have labs you can try in your browser, plus questions that earn points toward the Gate Guard badge.
Start lesson 1