Guess what? Osama Bin Ladin uses steganography. According to nameless "U.S. officials and experts" and "U.S. and foreign officials," terrorist groups are "hiding maps and photographs of terrorist targets and posting instructions for terrorist activities on sports chat rooms, pornographic bulletin . . .
Guess what? Osama Bin Ladin uses steganography. According to nameless "U.S. officials and experts" and "U.S. and foreign officials," terrorist groups are "hiding maps and photographs of terrorist targets and posting instructions for terrorist activities on sports chat rooms, pornographic bulletin boards and other Web sites." Simply put, steganography is the science of hiding messages in messages. Typically, a message (either plaintext or, more cleverly, ciphertext) is hidden in the low-order bits of a digital photograph. To the uninitiated observer, it's just a picture. But to the sender and receiver, there's a message hiding in there.

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