CompTIA Tech+ (FC0-U71)Applications and SoftwareHard
A user is attempting to install a new application on their macOS computer. After downloading the installer, they double-click it, but macOS displays a warning message stating that the application 'cannot be opened because it is from an unidentified developer.' The user confirms the application is legitimate and wishes to proceed. Which macOS security feature is preventing the installation, and how can the user bypass it for this specific application?
- ASandbox; modify application permissions in Finder.
- BGatekeeper; right-click the installer and choose 'Open'.
- CFirewall; add an exception in Network settings.
- DFileVault; disable it in Security & Privacy settings.
Show answer & explanationAnswer & explanation
Correct answer: B. Gatekeeper; right-click the installer and choose 'Open'.
Gatekeeper is a macOS security feature that prevents applications from running if they are not from the App Store or an identified developer. To bypass it for a legitimate, unidentified application, the user can right-click (or Control-click) the installer and select 'Open' from the contextual menu, then confirm the action.
Why the other options are wrong
- A. Application Sandboxing restricts what an app can do once it's running, but it doesn't prevent its initial installation.
- C. The macOS Firewall controls network connections, not the execution of locally downloaded applications.
- D. FileVault encrypts the entire disk and is unrelated to application installation warnings.
macOS Gatekeeper
A macOS security feature that helps protect the system from malicious applications by checking the origin of downloaded apps before allowing them to run.
- Blocks apps from unidentified developers or non-App Store sources.
- Requires apps to be signed by an Apple Developer ID.
- Can be temporarily bypassed for specific apps via a right-click 'Open' option.
- Configurable in 'Security & Privacy' settings.
Memory trick: Gatekeeper guards the gate, FileVault locks the crate.