Really technical savvy criminals will try to hide or scramble evidence on their computers. The techniques predate modern computers when we discuss steganography and encryption. In fact, they are so old that they can be traced back to their origins to ancient Greece. Steganography comes from the Greek word steganos, meaning covered or protected. Cryptography comes from the Greek word kryptos, which means to hide. The encrypted information is clearly scrambled and not hidden, so to speak.