Screen Sharing should be disabled
While your screen is being shared, the user of the other Mac sees what’s on your screen and can open, move, and close files and windows, open apps, and even restart your Mac. You should definitely disable this feature.
How to fix it
macOS 13 - 14
- Open “System Preferences”
- Go to “General” > “Sharing”
- Disable “Screen Sharing”
macOS 10.11 – 12
- Go to “System Preferences” > “Sharing”
- Disable “Screen Sharing”
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Other security setting to check
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Keep in mind: not every security and privacy setting is suitable for everyone. Enhancing the security can lead in losing functionality and/or comfort.
Before making changes, please backup your Mac! Do not make too many change at once. After changing your Mac, check if your normal usage of your Mac has changed in a way which fits to you. Are your really willing to loose some functionality and/or comfort?
Most important is, that you learn and understand what are the advantages and disadvantages of the security settings and that you are aware about the capabilities and risks of your Mac configuration.
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