Steganography breakthrough could be a gift for hackers

A team of researchers has developed a new method of hiding information inside innocuous-looking documents.
The technique itself – steganography – has been used in various forms for centuries; it differs from cryptography because the information has not been scrambled, just hidden. One early example would be the use of invisible ink to conceal a message in an ordinary-looking letter. In the computer age, so-called stego apps can be used to add secret data into image or video files by