In a communications system or network, the protection given to information to conceal it from persons having access to the system or network.
HACKERS COME TO MIND.
cryptographic security systems, and gaining access to the contents of encrypted messages, without being given the cryptographic key.
Hmmm! When I walk down the street there is bound to be a pair of eyes peering at me through the curtains. Not to mention the window cleaner that takes me by suprise when i am putting on my panties. Even the birds are watching me wonderng when I am going to feed them again.
When I am dead things will be found out about me.
Walk down the road and drop something, there is bound to be a pair of eyes pouncing on me for a fine.
The Police who take away a computer can access every bit of info that has been clicked even deleted from the very bowels of the machine. (It can be found and deleted but not many know how)
So Basically someone, somehow is watching you.