Hey @Etzel, thanks for posting your query to the Dropbox Community.
While you can't prevent someone with access to your link to access the content, depending on your Dropbox plan, there are some permissions you can set:
- You can password-protect the link
- You can disable downloads for the content of the link
- And you can set an expiration date
You can read more about this here.
Let me know if you have any questions.