Windows: Geotag Security is a simple program with one function: scrubbing the geotag data from your digital photos. If you've got a batch of photos that need their location sanitised it'll wipe them clean while preserving the rest of your EXIF data.
Wiping photos in Geotag Security is as simple as loading the folder they are in and clicking a button. Geotag Security wipes the photo EXIF data of all geographical information while leaving the rest of the EXIF data and image intact.
While the sales pitch on their web site is a bit alarmist, the product works as advertised. Geotag Security free and Windows only — upgrading to the premium model for $US19.99 enables folder monitoring.