Cryptography
The fact is there's no such thing as a perfectly, 100& secure computer system. There will always be bugs and security experts know that. So that were System Architects employ a strategy called defense in depth, which uses many layers of varying security mechanisms to frustrate attackers. A common reference to this is looking back at medieval times where you have a to keep safe the King of a land and it's castle. Attackers or enemies need to beat or dodge various obstacles in order to gain access to the castle and conquer it, but int this context we're talking about the most common forms of computer security called Cryptography. Whats is Cryptography? The word comes from the roots 'crypto' + 'graphy' which roughly translates to = Secret Writing. In order to make information secret you use Cipher, an algorithm that converts plain text into CipherText. Whats is Encryption? T...