Security and Safety

    • a virus scanner
    • a firewall

    Head over to Avira, download and install their latest free package.

    To turn the built-in firewall on:

    1. Choose Apple menu () > System Preferences, then click Security & Privacy.
    2. Click the Firewall tab.
    3. Click the Lock button, then enter an administrator name and password.
    4. Click Turn On Firewall.
    5. Click Firewall Options.

    Another controversial point. If you have a desktop machine in a secured building, you probably do not need disk encryption. If you travel a lot and take your notebook with you (including all your source codes), you might consider travelling with disk encryption enabled.

    1. Choose Apple menu () > System Preferences, then click Security & Privacy.
    2. Click the FileVault tab.
    3. Click the Lock button, then enter an administrator name and password.
    4. Click Turn On FileVault.
    5. Follow the instructions. In my opinion you should create a local and offline possibility to disable encryption, when you are asked how to regain access in case of anything.