Requirements
Identify users, trust boundaries, sensitive data, authentication needs and security-relevant failure cases before implementation.
Software + cybersecurity
Secure Software Lifecycle
Security works best when it is part of software design, implementation, verification and operation—not a final checkbox added after development is finished.
Practical & secureSecurity-minded implementation
Built for the taskClear, maintainable solutions
Remote collaborationBased in Turkey, worldwide
Secure by design
Security responsibilities through the lifecycle
This is practical engineering guidance, not a certification, penetration test, formal compliance framework or guarantee that a system is secure.
Architecture
Keep components and privileges proportionate; define where secrets, data, sessions and external integrations are handled.
Implementation
Validate inputs, protect secrets, use least privilege, handle errors carefully and avoid exposing internal details.
Dependencies
Track third-party packages, services and external APIs so updates and vulnerabilities do not become invisible operational debt.
Verification
Test authorization, abuse cases, failure paths and deployment configuration in addition to normal functional behavior.
Operation
Plan logging, backups, updates, credential rotation, incident response and ownership after the software is deployed.
High-value review areas
Focus on boundaries that change real risk
Identity & authorization
Separate authentication from authorization and check access at the point where protected data or actions are reached.
Secrets & configuration
Keep credentials out of source code and logs, reduce privilege, and make environment-specific configuration explicit.
Input & output handling
Treat external input as untrusted, encode output for its destination and avoid leaking stack traces or sensitive internal state.
Observability & response
Record useful security events without collecting unnecessary personal data, and decide who reviews alerts or suspicious behavior.
Let’s work together
Building or changing software?
Share the architecture, users, integrations and security-sensitive areas so the software and cybersecurity scope can be planned together.