http://swonderstzr43aczpcwdoyc25vwxngyromja7pyb5sf26ap3v535sxqd.onion/hidden-metadata
This is completely different to steganography which could potentially hide hidden information inside the data itself. Hidden metadata Concerns: Hidden metadata may expose private information such as the location where
the photo was taken, when the photo was taken, the type of camera used along with the hardware
unique identifier, authoring details, embedded thumbnails and other content.