How? Go to System Preferences > Security & Privacy > Advanced…, check “Require an administrator password to access system-wide preferences”.

Why? To ensure only authorized users can change critical security settings. Require password to change system-wide preferences Repeat these steps for Microphone, Input Monitoring, Full Disk Access and Screen Recording access as well. How? Go to System Preferences > Security & Privacy > Privacy > Camera, uncheck all unnecessary access. Why? To mitigate the potential impact of malicious software. How? Go to System Preferences > Sharing, uncheck all. How? Go to System Preferences > Security & Privacy > Firewall, if disabled, click “Turn On Firewall”. Why? To reduce the exposure to network-based attacks. How? Go to System Preferences > Security & Privacy > FileVault, if disabled, click “Turn On FileVault” and follow the procedure. Why? To prevent unauthorized third-party access to your data. How? Go to System Preferences > Users & Groups > Guest User, uncheck all. How? Go to System Preferences > Security & Privacy > General, select “Allow apps downloaded from App Store and identified developers” at most. Why? To prevent potentially malicious software from running. How? Go to System Preferences > Security & Privacy > General, check “Require password 5 seconds after sleep or screen saver begins”. How? Go to System Preferences > Desktop & Screen Saver > Screen Saver, check “Show screen saver after 20 minutes”. Why? To avoid unauthorized third-party access. How? Go to System Preferences > Software Update > Advanced, check all. Why? So that your system has the latest software patches installed. Perform the inital configuration until you can use the system. Why? It’s best to start clean, to avoid previous misconfiguration.

Everyone can do these, no technical knowledge required.

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