Secure Source Code Review

Andersen delivers secure code review combining expert manual secure code review analysis with SAST and SCA tools to detect vulnerabilities before release. We prioritize findings by risk and provide remediation guidance that cuts defect costs across the secure SDLC.

Secure code review services we offer

Our manual review process identifies logic flaws, insecure patterns, and vulnerabilities that automated tools miss — covering authentication, authorization, and business logic defects.

What the review delivers:

  • Business logic and design-level flaw analysis;
  • OWASP Top 10 and SANS Top 25 coverage;
  • Findings report with severity ratings and remediation guidance.

We deploy static application security testing (SAST) tools tuned to your stack, reducing false positives and false negatives through manual triage so teams fix real vulnerabilities.

Service includes:

  • SAST tool configuration and tuning per tech stack;
  • Integration with existing CI/CD build pipelines;
  • Triage of findings with confirmed severity and context.

Our review examines web application source code for web application security flaws — injection flaws, broken access control, and cryptographic weaknesses.

Review scope:

  • OWASP Top 10 and WSTG-aligned analysis;
  • API security checks for REST and GraphQL endpoints;
  • Verification of input validation and output encoding.

iOS and Android source code review covering insecure storage, weak authentication, and exposed API keys — mapped to the OWASP Mobile Top 10 so teams tackle the highest-risk issues first.

Coverage includes:

  • OWASP Mobile Top 10 coverage;
  • Detection of hardcoded credentials and insecure local storage;
  • Review of authentication and session management on device.

We analyze API and microservices code for authentication gaps, authorization flaws, and data validation issues against the OWASP API Security Top 10, reducing breach risk.

What we assess:

  • API security checks aligned with OWASP API Top 10;
  • Review of service-to-service authentication and access control;
  • Detection of insecure data handling and trust boundary violations.

We analyze infrastructure as code (Terraform, CloudFormation, Ansible) for misconfigurations that create exploitable attack surface — catching security defects before deployment.

IaC review covers:

  • IaC static analysis for misconfigurations;
  • Cloud security checks against CIS benchmarks;
  • Findings prioritized by exploitability and production exposure.

We integrate SAST code scanning into your CI/CD pipeline as part of a DevSecOps workflow, running security checks on every commit and stopping vulnerable code from reaching production.

Integration delivers:

  • SAST integration into CI/CD build gates;
  • Policy-as-code rules covering common vulnerability classes;
  • Baseline configuration with tuned false-positive suppression.

We run software composition analysis (SCA) to identify vulnerable and malicious third-party components, mapping findings to CVE databases with CVSS scores and licensing risks before release.

SCA covers:

  • SCA scan of all direct and transitive dependencies;
  • CVE mapping with CVSS severity and exploitability;
  • License compliance and third-party supply chain risk reporting.

We analyze the target company's codebase, security posture, and technical risk before the deal closes — giving buyers visibility into security debt and informing post-acquisition remediation.

Due diligence scope:

  • Threat modeling, risk assessment, and architecture review;
  • Review of security controls and secure coding practices;
  • Risk-scored findings report for deal decision support.

We scan codebases for malicious logic, backdoors, and data-exfiltration routines that bypass SAST detection — recommended after supply chain incidents or when inheriting code with unknown provenance.

Detection covers:

  • Manual analysis of suspicious code patterns and data flows;
  • Detection of unauthorized network calls and credential harvesting;
  • Findings report with evidence and remediation steps.

We review code against regulatory and industry requirements to help teams demonstrate that business-critical systems meet privacy, security, and operational obligations across global compliance frameworks.

Compliance review covers:

  • GDPR and data protection requirement checks across application logic and data flows;
  • PCI DSS, SOC 2, and HIPAA-aligned security control validation;
  • ISO 27001, CRA, NIS2/DORA, and NCA ECC/SAMA readiness assessment with remediation guidance.

Get the right secure code review for your project

Secure code review case studies

USA

A US development tools company needed a structured code review workflow. Andersen built a web app integrating with GitHub to surface security and quality metrics, reducing review cycle time.

What we look for in your source code

Injection flaws (SQL, command, and LDAP)

Injection appears when applications pass unvalidated input to SQL, command, or LDAP interpreters — exposing data, executing system commands, and enabling full compromise.

Authentication and session management

Weak authentication and session handling let attackers hijack sessions or reuse stolen credentials. The result is unauthorized access to user accounts and business-critical functions.

Access control and authorization logic

Broken access control and authorization let users reach data and functions beyond their role. Missing object-level checks and privilege escalation expose sensitive records and admin actions.

Benefits of a secure code review

Vulnerabilities found before release

Catches exploitable flaws before they reach production, where vulnerability remediation costs a fraction of fixing the same issue at later SDLC stages.

Lower remediation cost per defect

Fixing defects in code costs less than patching deployed systems. Reports include root-cause explanations and fix examples. Secure code reviews accelerate triage and fix validation.

Support audits and compliance

Produces evidence-grade reports with CVSS scores and retest records to support ISO 27001, SOC 2, and PCI DSS regulatory compliance audits, helping teams prepare for external security audit checks.

Reduce SAST false positives

Automated scanners create noisy output. Andersen engineers apply vulnerability triage to confirm real issues, and secure code reviews help teams focus on exploitable findings while reducing false positives.

Prioritize security risks

Regular assessments apply risk-based prioritization to map findings to CVSS scores, so teams tackle the highest-risk defects first without stalling schedules.

Get actionable remediation guidance

Each finding includes a root-cause explanation and specific fix guidance so teams resolve issues correctly the first time.

Why choose Andersen for secure code review

Certified application security engineers

Our security experts hold CISSP, OSCP, CEH, GWAPT, and CREST certifications — identifying complex vulnerability classes and logic flaws that automated tools miss.

Manual review with automated analysis

Manual inspection combined with application security testing tools (SAST and SCA) catches pattern-based flaws and business logic defects.

ISO 27001 and SOC 2 security controls

Andersen operates under controls audited to ISO 27001 and SOC 2, so clients can share codebases under NDA with confidence.

Findings mapped to OWASP

Every finding is classified against the OWASP Top 10 and CWE taxonomy with CVSS scores, so teams slot results into vulnerability management workflows and their security program.

Fix-verification and retesting

After fixes are applied, Andersen retests each finding to confirm resolution — retest records serve as audit evidence for compliance reviews.

Engineering support for remediation

Andersen engineers advise on secure coding patterns throughout the fix phase — supporting knowledge transfer and lowering vulnerability density. Our source code review services include hands-on remediation support for engineering teams.

Security expertise and compliance

Andersen's engineers hold certifications across offensive and defensive security. Our company operates under ISO 27001 and SOC 2 standards.

FAQ

A secure code review analyzes source code for vulnerabilities and design weaknesses before release. Unlike penetration testing, it examines the codebase directly — finding flaws where they cost least to fix and giving teams clear remediation guidance before deployment.

Start your secure code review with Andersen

What happens next?

An Andersen security engineer reviews your requirements and reaches out to you;

If requested, we sign an NDA before any code is shared;

Andersen submits a detailed engagement proposal with scope, timeline, and pricing.

Customers who trust us

Clear.BankWavenetSamsung

Start your secure code review with Andersen