Security Audit & Hardening

When a security vulnerability is discovered, the damage has usually already been done: customer data has been leaked, the system has been compromised, or the site has been inaccessible for hours. Many small and medium-sized businesses only learn that their application harbors a security vulnerability after an attack. Breaches of personal data under the scope of KVKK (Turkish data protection law) cause long-term damage to corporate reputation that extends well beyond financial penalties.

Our Solution Approach

At Barlas Dijital, we structure security audits as a proactive rather than reactive process. Using the OWASP Top 10 methodology as our foundation, we systematically examine web applications. We begin with automated scanning tools and deepen the process with manual verification and source code review. Both black-box and grey-box approaches are selected based on the nature of the project; at the end of the audit, a report is delivered that is classified by severity and ready to be acted upon.

Scope & Features

• OWASP Top 10 controls — Injection, broken authentication, sensitive data exposure, security misconfiguration, and others
• SQL Injection tests — Parametric attack simulations at all form and API entry points
• XSS (Cross-Site Scripting) — Manual and automated detection of reflected, stored, and DOM-based vulnerabilities
• Authentication and session management — JWT/token security, brute force protection, session duration, and logout behavior
• CORS and HTTP security headers — Detection of CSP, HSTS, and X-Frame-Options misconfigurations
• API endpoint security — Unauthorized access, missing rate limiting, data exposure, and IDOR vulnerabilities
• Dependency scanning (SCA) — Detection of known CVEs in npm, pip, or NuGet packages
• Hardening implementation — Remediation of detected vulnerabilities in order of criticality and verification testing

Technical Standards

OWASP ZAP, Burp Suite Community, and Semgrep static analysis tool are used in the audit. npm audit and Snyk are integrated for dependency scanning. The audit output is presented as a two-tier report containing technical details for the technical team and an executive summary for management. Patch support for high and critical vulnerabilities can also be included in the scope.

Who Is It For?

• Businesses that process customer, payment, or health data and want to ensure KVKK or PCI-DSS compliance
• Development teams that want to obtain security approval before launching a new web application or API to production
• Companies that want to have systems delivered by a third-party developer or agency independently audited

Expected Outcomes

• Known OWASP Top 10 vulnerabilities are closed; the attack surface is noticeably reduced
• Technical groundwork for KVKK and PCI-DSS compliance processes is established
• The development team gains security awareness; the same vulnerabilities are not reintroduced
• The cost of a security audit is always small compared to the financial and reputational damage of a potential data breach