When people talk about information security or computer security, they usually refer to Confidentiality.

In deed, the origin of information security comes from the need of this in military and polictical area. Countries worry about their confidential information leaks to emeny countries. That threatens their security and standing positions in the World.

If you are new to security history, read the book by Simon Singh called “The Code book -Science of Secrecy from Ancient Egypt to Quantum Cryptography“