Mikrotik autosharing attached external disk
After watching Mikrotik's fresh video on how to turn router into media hub I went to check IP -> Media menu and to my surprise found that my external disk is already shared somehow dynamically and I cannot even remove it.
Further investigation showed that I had following line in configuration:
/disk settings set auto-media-interface=bridge auto-media-sharing=yes auto-smb-sharing=yes
I have no idea where it had come from, but it made my full external disk shared over both DNLA and SMB and to disable it I had to remove 2 sharing checkmarks from disk and partition.
Forum mentions similar problem already from Nov 2024, so if you have storage attached to your Mikrotik, verify if router might unknowingly share it's contents freely.
EDIT: RouterOS 7.15, released 30 May 2024. The 7.15 changelog line is "disk - added option to auto configure media sharing"