Privacy in architecture

Privacy isn't something you add to a product after building core features. It's a foundational decision embedded in system architecture from the start. Privacy-focused architecture means choosing data models, storage solutions, and system integrations that minimize data collection, limit access, and give users control.

Start by questioning what data you actually need. Many products collect information "just in case" rather than for specific purposes. Map data flows through your system to identify where personal information travels, who accesses it, and how long it persists. Choose architectures that support privacy: local processing over cloud storage when possible, encryption by default, and clear data storing policies.

Technical choices reflect ethical priorities. Storing passwords as hashed values protects users. Building systems that can delete user data completely honors deletion requests. Creating separate databases for personal and operational data limits exposure. These decisions require upfront investment but prevent privacy problems that are expensive or impossible to fix later.