Disable automatic start of files downloaded by Safari
Safari declares some kind of files by default as safe and opens them after a download has finished. These file types are pictures, movies, audio, PDF, archives, … Some of them are known in the past to bring in malicious code. Maybe you have accidentally clicked on a link which downloads a file, there is nearly no chance to stop opening the file. So turn off these feature and decide on your own, to open these files or not.
How to fix it
macOS 10.11 – 14
- In Safari go to “Preferences” > “General”
- Deselect “open ‘safe’ files after downloading”
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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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