Saturday, July 23, 2011

Exif data - Security measures

All the professional photographers are familiar with the term "Exif data". But general public most probably must have never heard of this term. so here is bit information to get you started with.
Exif (Exchangeable image file format) is a specification used to store data in a image. This data contains very important information about the image like the model of the camera used to take the image, date and time at which the image was taken, location of where the image was taken (if the camera or smartphone is GPS enabled) etc. This can be very helpful for photographers to later study the images and find optimal camera settings for the best images.To view exif data you need a exif viewer. here is one OPanda Iexif.

But this also has a bad side. Here are security issues that can be presented due to Exif data.
  • Many times people take their embarrassing images covering their face, which they post online in the spur of the moment. But it should be noted that exif data can provide information which can be used to identify the person in the image. People with bad intentions may take advantages of such situations by black mailing the person in the image.
  • Many times the time and date of the image is intended to be kept secret, for many personal reason but exif data can reveal this information very easily.
  • Exif information can be used wrongly to bully people on sites like 4chan.
Now you can avoid all this inconveniences due to exif data by taking some simple security measures.
  • Select the option "for web" while saving the image.
  • You can easily remove exif data from a image using software like Exif Tag Remover

2 Responses to “Exif data - Security measures”

Anonymous said...

For deleting EXIF tracks, I prefer a metadata removal utility by Superutils. It costs cheaper since Exif Tag Remover bacame a paid app. Also, EXIFCleaner is much more configurable on what data leave, and what to strip out from digital photos.

mayur shett said...

@Anonymous
Thanks for the suggestion.

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