by: George Starcher, Associate Editor
I was catching up on Pauldotcom Security Weekly podcast episodes. Larry covered a nice tool on modifying and even scrubbing exif tags in image files. Exif is the Exchangeable image file format. You can read more on it over on Wikipedia (exif). But in essence a lot of information can be stored in the tags within images that you take with today’s digital devices and tools. If you listen to the episode of Pauldot Larry covers some history where a hacker’s identity was exposed by exif image information in PDC Episode 92.
Larry talked about ExifTool by Phil Harvey. A great command line tool that can modify the exif information. It can even clear it all out in one shot. Well for typical mac users I checked out the tool. And here is how you make an Automator action to scrub the exif data from any images you select. I will plan to do another post later making this into an AppleScript folder action. Then you’ll be able to just scrub images by dropping them into a dedicated folder.
Here is what you do: (more…)