Fundamental security
Security is an important aspect of any computer system, network, or application. Security refers to the measures taken to protect these systems and data from unauthorized access, theft, damage, or other malicious activities. The fundamental principles of security include:
- Confidentiality: Confidentiality refers to the protection of sensitive or confidential data from unauthorized access or disclosure. This includes data such as personal information, financial data, or intellectual property.
- Integrity: Integrity refers to the protection of data from unauthorized modification, deletion, or tampering. Data must remain accurate, complete, and uncorrupted.
- Availability: Availability refers to the availability of data and systems to authorized users. Data and systems must be available when needed and must not be subject to unavailability due to technical issues or malicious activities.
- Authentication: Authentication refers to the verification of a user’s identity to ensure that only authorized users are granted access to data or systems.
- Authorization: Authorization refers to the granting of specific privileges to an authenticated user based on their role or permissions.
- Non-repudiation: Non-repudiation refers to the ability to prove that a user has performed a specific action or transaction, which cannot be denied by the user later on.
- Risk management: Risk management refers to the process of identifying, assessing, and mitigating risks associated with data and systems.
- Defense-in-depth: Defense-in-depth refers to the use of multiple layers of security controls to protect data and systems from multiple types of attacks.
Understanding these fundamental security principles is essential for anyone who wants to develop, maintain or use computer systems, networks, or applications that are secure and protected from potential threats.