The full answer
Security starts in design, not at the end. During discovery we identify what data the product will hold, how sensitive it is and which regulations apply, then shape the architecture around that: what is stored, where, who can see it and how long it is kept.
In development, our engineers follow secure coding practices based on OWASP guidance, such as validating input, using parameterised queries, managing secrets outside the codebase and keeping dependencies patched. Code is reviewed before it is merged.
In production, data is encrypted in transit with TLS and at rest using the cloud provider's encryption services. Access to systems follows least privilege, and administrative actions are logged so they can be reviewed later.
Confidentiality covers people as well as systems. An NDA is signed before discovery on request, project information is shared only with the team assigned to your product, and access to your repositories, cloud accounts and data is removed when someone leaves the project.
Backups and recovery are part of the plan as well. We configure automated backups, test that they can be restored, and monitor production systems so unusual activity is spotted early.