Canary Trap - Embedding Information

Embedding Information

The technique of embedding significant information in a hidden form in a medium has been used in many ways, which are usually classified according to intent:

  • Watermarks are used to show that items are authentic and not forged.
  • Steganography is used to hide a secret message in an apparently innocuous message, in order to escape detection.
  • A canary trap hides information in a document that uniquely identifies it, so that copies of it can be traced.
  • Screener versions of DVDs are often marked in some way so as to allow the tracking of unauthorised releases to their source.

Read more about this topic:  Canary Trap

Famous quotes containing the word information:

    “Many more children observe attitudes, values and ways different from or in conflict with those of their families, social networks, and institutions. Yet today’s young people are no more mature or capable of handling the increased conflicting and often stimulating information they receive than were young people of the past, who received the information and had more adult control of and advice about the information they did receive.”
    —James P. Comer (20th century)