Al Qaeda used steganography to hide information in a porn video this week.
A video file has plenty of space to hide digital documents.
Steganography is very difficult to detect because it is hidden in plain sight.
How do you hide secret plans in a porn video?
Experts say it’s not that hard. Spies have been hiding documents inside other documents or files for hundreds of years. It’s known as steganography, or the science of security through obscurity.
Think about a poem in which the first letter of each word spells out a secret message, or a tiny microdot containing codes hidden in a typewritten period. Now, steganography has gone digital and some terrorists have embraced it.http://news.discovery.com/tech/zooms/al ... 20501.html