Graphics Programs Uncover Secret PINs

Errtu76 writes "The BBC is running a story stating that, among other programs, The Gimp and Photoshop have been identified as possible tools for uncovering PINs via the mail." From the article: "The researchers collected lots of so-called Pin mailers and then tested how secure they were. Many were defeated using bright lights shone at an angle on to the paper. Other Pins could be read by scanning the letter and then adjusting some of the image qualities in popular programs such as GIMP, Adobe Photoshop and Paintshop Pro."