A couple of days before today’s release of the final volume in the Harry Potter series, someone went to the trouble of photographing every page of the book (all 784!) and posting them online.

But that might not have been the smartest thing this person ever did.

The EFF Deep Links blog explains how the extensive amount of information contained in the EXIF metadata attached to each file might be used to track down who took the pictures.

It’s an interesting look at the embedded information left behind by cameras and many other devices, digital fingerprints most users are not aware of.

Possibly a cautionary tale as well.

exif, metadata, harry potter