There are more things than we know that can be revealed by your JPEG EXIF metadata such as the type of camera you use, aperture settings, the type of focus, lens type and even the location of the picture taken that might compromise the privacy of the persons or locations depicted in the photograph.
One of the things that we can do to is to strip away the information from JPEG files before uploading them to the internet, by using exiftool or jhead.
Exiftool
Install libimage-exiftool-perl
sudo apt-get install libimage-exiftool-perl
and by running the command
exiftool -all= *.jpg
jhead
Install jhead package:
sudo apt-get install jhead
and by running the command
jhead -purejpg /path/to/*.jpg
