Only a small fraction of the information flowing around the world is securely encrypted, and the remainder is
poorly encrypted, or not encrypted at all. This is because
the number of Internet users is rapidly increasing, and
yet few of these people take adequate precautions in
terms of privacy. In turn, this means that national
security organizations, law enforcers and anybody else
with a curious mind can get their hands on more
information than they can cope with.
- The Code Book,
Simon Singh