Industrial property rights can ensure that third persons cannot adopt your idea as their own and realize it before you have done so. You can protect an invention in a technical field for example by filing a patent for it. More detailed information can be found in the aspects of daily life "Patents, Brands, Transfer of Ideas" (Patente, Marken, Ideentransfer).
Personal intellectual creations on the other hand are protected by Copyright.
The German original version of this text was drafted in close cooperation with the relevant departments. The Justizministerium released it on 20.10.2023. Only the German text is legally binding. The Federal State does not assume any liability for the translated texts. In cases of doubt or if you have any questions or problems, please contact the relevant authorities directly.