入门 · 课程数：4
Your operating system, your first line of defence
What an operating system does, how permissions and sandboxing protect you, and why updates matter.
- 1 What an operating system does
The kernel, processes, files and user accounts: four ideas behind everything your Mac does.
7 分钟 - 2 Permissions and sandboxing on macOS
How the app sandbox, the privacy permission prompts, and your account type each limit what software can do.
8 分钟 - 3 How macOS checks the apps you open
Code signing, Gatekeeper, notarization and XProtect: four checks that run before and after you open an app.
8 分钟 - 4 Why updates matter
What a vulnerability is, how a patch fixes it, and how to keep macOS and your apps current.
6 分钟
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