Security by Design: Building Trustworthy Systems
Security by Design: Building Trustworthy Systems Security by design means building security into every layer of a system from the start. It is a mindset, not a single step. When teams treat security as a design constraint, products become safer by default and easier to maintain. This approach helps reduce surprises for users, developers, and operators alike. Principles guide good security by design Least privilege: grant only the access each component or user needs. Fail-safe defaults: default to secure, with clear, safe options to change course. Defense in depth: multiple barriers protect data and functions. Secure by default: configurations should be safe out of the box. Threat modeling: identify likely attackers and scenarios early, before coding begins. Secure software lifecycle: security tasks are part of planning, design, coding, testing, and deployment. Privacy by design: minimize data, protect what you collect, and be transparent about use. Clear incident response: plan for breaches and practice how to respond. Safer APIs: require strong authentication, input validation, and rate limits. Secrets management: store keys securely and rotate them regularly. Practical steps for teams ...