Layered Security
Layered Security, also known as Defense in Depth, is a cybersecurity strategy that employs multiple, overlapping security controls and mechanisms at various levels of a system to protect against threats. It aims to create redundancy so that if one layer fails, others can still prevent or mitigate an attack. This approach addresses vulnerabilities across physical, network, application, and data layers to enhance overall resilience.
Developers should learn and implement Layered Security when building or maintaining systems that handle sensitive data, such as in finance, healthcare, or e-commerce applications, to reduce the risk of breaches. It is crucial in environments with high security requirements, as it helps defend against diverse attack vectors like malware, unauthorized access, and data leaks by not relying on a single point of failure.