Don’t show password hint at login window
Password hints make it easier for unauthorized persons to gain access to your Mac by providing information to anyone who has access to your computer and knows your user name. This info could include the password itself or other information that might be readily discerned with basic knowledge of the end user or gathered through social engineering.
How to fix it
macOS 13 - 14
- Open “System Preferences”
- Go to “Lock Screen”
- Deselect “Show password hints”

macOS 10.11 – 12
- System Preferences > Users & Groups > Login Options
- Deselect “Show password hints”

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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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