what are the seven layers in layered security?
hoekstraauthor"The Seven Layers of Layered Security"
Layered security is a security strategy that aims to protect sensitive information by using multiple layers of defense. This strategy is based on the idea that no single measure can be 100% effective, so it is better to have multiple layers in place to increase the overall security of the system. The seven layers of layered security are as follows:
1. Physical Layer
The physical layer is the first and most basic level of security. It includes the hardware and infrastructure used to store and process data. This layer includes things like firewalls, routers, servers, and network devices. The physical layer should be secure and protected from unauthorized access.
2. Access Control Layer
The access control layer is responsible for determining who can access the resources in the system. This layer includes user authentication and authorization processes, such as user names, passwords, biometric data, and access control lists. This layer should ensure that only authorized users can access sensitive information.
3. Communication Layer
The communication layer is responsible for protecting the data being transmitted across the network. This layer includes encryption and decryption techniques, such as SSL/TLS, to ensure that the data is protected during transmission. This layer should prevent data from being intercepted or tampered with by unauthorized parties.
4. Application Layer
The application layer is where the actual services and applications are run. This layer includes things like web applications, client-server applications, and desktop applications. The application layer should be secure, with appropriate access controls and validation of user input to prevent security vulnerabilities.
5. Presentation Layer
The presentation layer is responsible for presenting the data and user interfaces to the users. This layer includes things like HTML, CSS, and JavaScript. The presentation layer should be secure, with appropriate security measures such as input validation and error handling to prevent vulnerabilities.
6. Session Layer
The session layer is responsible for managing the interactions between users and the system. This layer includes things like session management, cookie handling, and caching techniques. The session layer should ensure that user data is protected during the session and that sessions are terminated when no longer needed.
7. Application Programming Interface (API) Layer
The API layer is responsible for providing access to the system through programmed interfaces. This layer includes things like RESTful APIs, SOAP APIs, and web hacks. The API layer should be secure, with appropriate access controls and validation of API calls to prevent unauthorized access to sensitive data.
Layered security is a comprehensive approach to protecting sensitive information that incorporates multiple layers of defense. Understanding and implementing the seven layers of layered security is essential for creating a secure environment for your organization. By taking a layered approach, you can significantly increase the overall security of your system and protect sensitive data from potential threats.