Access and data security: authentication, authorisation and protection

What is Access and data security?

An app's security starts with how it manages the identity and permissions of those who interact with it. At Q2BSTUDIO, we audit the access and data model of web applications, APIs, microservices, and internal platforms to detect weaknesses that could lead to unauthorized access, privilege escalation, data exfiltration, or regulatory non-compliance. It's not just about verifying that authentication exists—it's about evaluating whether the security design is correct, consistent, and resilient to implementation failures.

Our analysis covers the fundamental axes: authentication (login mechanisms, MFA, session management, tokens, refresh, expiration), authorization (role and permissions model, resource access control, ABAC vs RBAC, frontend and backend enforcement), data protection at rest (encryption, tokenization, pseudonymization), protection in transit (TLS, certificate pinning, HSTS), secrets management (secure storage of credentials, turnover, minimum access) and traceability (access logs, auditing of sensitive changes, anomaly detection).

The process includes source code review focused on authentication and authorization flows, identity provider configuration analysis (Entra ID, Auth0, Cognito, Keycloak), token strategy evaluation (JWT, opaque, session cookies), password and recovery policy review, and verification that access control is applied consistently across all layers (API gateway, backend, database).

The resulting report details each finding with severity, plausible exploitation scenario, and remediation recommendation. We prioritize by real risk (not just theoretical) taking into account the context of the application, the type of data it handles, and the most likely threats in your industry. We do not inflate severities to justify hours; Each finding is honestly contextualized.

We also assess compliance with applicable regulatory requirements (GDPR, ENS, HIPAA if applicable) with regard to personal data protection: minimisation, consent, right to be forgotten, encryption, breach notification and data controller. We are not legal compliance consultants, but we identify technical gaps that could lead to non-compliance.

The service is complemented by hardening recommendations: security headers, CORS configuration, CSRF protection, rate limiting, brute force attack detection, and WAF configuration when applicable. Each recommendation is specific to the customer's stack and context.

We do not guarantee invulnerability: security is an ongoing process, not a binary state. We audit, report and propose improvements — implementation and subsequent maintenance requires ongoing team commitment.

The service includes a results transfer session to the development team where findings are explained, technical questions are resolved, and remediations are jointly prioritized. If follow-up is contracted, we validate that the corrections are implemented correctly and do not introduce new vectors. For organizations with multiple applications, we offer a reusable assessment framework that allows for periodic repeat audits with consistent criteria.