What is information security? What are its purposes and principles?

The purpose of information security is:

Protect information from various threats.

To ensure business continuity.

Minimization of business risk

Maximize return on investment and business opportunities

The principles of information security are:

Minimization principle

Principle of decentralization and checks and balances

Safety isolation principle

Information security can be divided into narrow sense and broad sense. Information security in a narrow sense is based on cryptography in the field of computer security. Information security in a broad sense is a comprehensive subject, which is no longer a simple technical problem, but a product of the combination of management, technology, law and other issues.