What is Security by Design?

Security by Design (SbD) is an approach to software and system development that integrates security considerations from the very beginning of the project lifecycle. Rather than adding security features as an afterthought, SbD embeds security requirements into the initial design and architecture. This proactive approach aims to minimize vulnerabilities, reduce costs associated with fixing security flaws later on, and improve the overall resilience of the system. Common practices include threat modeling, secure coding guidelines, security testing throughout the development process, and considering security implications in every decision.