The practice of messages in the data underlying an image is called steganography. Steganographic encryption works by adding a small pattern as a layer over an image. Sometimes the pattern is invisible ...

“If you rename a .docx file to .zip you can open it,” tweets SwiftOnSecurity, the security professional/Taylor Swift parody account. Then you can grab images and video that were embedded in the ...

When most people think of Microsoft Excel, they think of organizational charts, budgets and quantitative formulas. However, there is much more to Excel than data manipulation. Adding multimedia images ...