SAST Source Code Scanning

Secure Your Applications from the Very First Line of Code

Cyberattacks don’t just happen at the system level — many begin in your source code. SAST (Static Application Security Testing), also called Source Code Scanning or White-box Testing, uses static analysis to detect logic flaws and hidden vulnerabilities early in development — before they ever reach production.
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5 Key Advantages of Source Code Scanning

SAST is the first step in implementing DevSecOps. It not only improves visibility into development risks but also helps organizations build sustainable, maintainable application security without impacting performance.

Find Vulnerabilities Early

Detect security issues in source code during development with static analysis. Fix problems before deployment to reduce remediation costs and launch risks.

Analyze Program Logic Directly

Inspect source code in depth to uncover weak input validation, logic flaws, and sensitive data exposure — stopping vulnerabilities before release.

Seamless DevSecOps Integration

Supports Jenkins, GitLab, Azure DevOps, and other CI/CD tools. Embed SAST into your pipeline for continuous and automated security checks.

High Accuracy, Low False Positives

Using syntax and semantic analysis, SAST tracks logic and variable flows precisely, reducing false positives and missed vulnerabilities found in traditional scanners.

Comprehensive Security Reports

Get detailed vulnerability data, remediation advice, and tracking logs — supporting compliance with ISO 27001, CNS, and Taiwan’s Cybersecurity Management Act.

SAST Complies with Taiwan and International Standards

G

Government Agencies

Key Regulations / Standards

  • Cybersecurity Management Act (Taiwan Executive Yuan)
  • Cybersecurity Responsibility Level Guidelines
  • ISO/IEC 27001
  • ISO/IEC 27002

Primary Security Focus

System data protection, internal control, and audit transparency

F

Financial Institutions

Key Regulations / Standards

  • Financial Institution IT Security Assessment Guidelines
  • Financial ISMS Baseline Requirements
  • ISO/IEC 27001
  • PCI DSS
  • CNS 27001
  • Personal Data Protection Act

Primary Security Focus

Customer data protection, secure transactions, anomaly monitoring and reporting

H

Healthcare Organizations

Key Regulations / Standards

  • ISO/IEC 27001
  • ISO/IEC 27799
  • Personal Data Protection Act

Primary Security Focus

Medical record protection, patient privacy, third-party platform integration security

T

Technology & Manufacturing

Key Regulations / Standards

  • ISO/IEC 27001
  • NIST Cybersecurity Framework (CSF)
  • SEMI E187
  • Supply Chain Cybersecurity Audit Requirements

Primary Security Focus

Protection of R&D and production code confidentiality, supply chain transparency

P

Publicly Listed Companies

Key Regulations / Standards

  • Personal Data Protection Act
  • Cybersecurity Management Guidelines for Listed Companies

Primary Security Focus

System access control, self-assessment and disclosure compliance, audit traceability

E

E-commerce / SaaS Platforms

Key Regulations / Standards

  • ISO/IEC 27001
  • DevSecOps Implementation Guidelines
  • Personal Data Protection Act

Primary Security Focus

Code-as-a-product risk management, automated testing integration

Our SAST services follow both Taiwan and international regulations to ensure scanning processes and risk assessments meet compliance requirements:

  • ISO/IEC 27001 — Information Security Management System
  • ISO/IEC 27002 — Code of Practice for Information Security Controls
  • NIST 500-268 — Guide to Software Assurance Testing
  • CWE / CVE / NVD — Common Weakness Enumeration and Vulnerability Databases
  • CVSS v3 — Common Vulnerability Scoring System
  • Taiwan Cybersecurity Management Act
  • Grading Guidelines for Information Security Responsibility
  • Personal Data Protection Act
  • PCI DSS, CNS 27001, SEMI E187

For each finding, we provide CVSS v3 ratings along with remediation and prioritization recommendations to help enterprises respond quickly to audit requirements.

Which Industries Benefit from Source Code Scanning?

Government Agencies

Government Agencies

Required to comply with the Cybersecurity Management Act, performing security scans and generating reports during system development.

Financial & Insurance

Financial & Insurance

Mandatory for compliance with assessment guidelines and self-audits by financial regulators; SAST is the baseline requirement.

Tech & Manufacturing

Tech & Manufacturing

Protects intellectual property and production line controls while supporting client supply chain security audits.

Healthcare

Healthcare

Safeguards highly sensitive patient data and medical records, providing a preventive layer and audit evidence.

SaaS / Platform Services

SaaS / Platform Services

Ensures DevSecOps implementation and compliance for business/member platforms facing customer security reviews.

Listed Companies

Listed Companies

Must perform source code scans and generate reports for core systems to meet disclosure and audit responsibilities.

Cymetric SAST Success Stories

Cymetric has assisted government agencies, financial institutions, and tech manufacturers in implementing source code scanning for in-development systems, successfully identifying and remediating high-risk vulnerabilities such as:

DOM-based XSS

User input injected into pages without validation, enabling arbitrary script execution.

Insecure Randomness

Insecure Randomness: Predictable password reset codes, leading to account compromise.

CSRF (Cross-Site Request Forgery)

Unauthorized actions triggered via third-party pages, leaking permissions.

Information Leakage

Sensitive data in debug logs, including tokens and directory paths.

Through SAST, we help clients proactively block security risks, reduce remediation time and effort, and provide full reports supporting ISO 27001, Cybersecurity Management Act compliance, and industry audits.

Our SAST Solution

Yuan Jhen Information, in partnership with Cymetrics, provides enterprise-grade source code scanning solutions. Our automated static analysis, syntax & semantic engines, and expert review identify high-risk vulnerabilities early without disrupting development.
Industry-Focused Approach

Industry-Focused Approach

Tailored for government, finance, healthcare, manufacturing, and SaaS industries — meeting regulatory standards and managing development security risks.

Robust Technology

Robust Technology

Powered by advanced static analysis engines and multi-language support to examine code logic, data flow, and control paths with pinpoint accuracy.

Comprehensive Reporting

Comprehensive Reporting

Provides vulnerability reports, CVSS scores, remediation guidance, and traceability — meeting ISO 27001 and Cybersecurity Management Act requirements.

DevSecOps Integration

DevSecOps Integration

Integrates with CI/CD pipelines and tools such as GitLab, Jenkins, and Azure DevOps for automated testing and continuous risk control.

Expert Consultation

Expert Consultation

Security consultants help interpret scan results, set remediation priorities, and offer compliance and risk management guidance.

Source Code Scanning FAQs

SAST, Vulnerability Scanning, or Pen Testing – What’s the Difference?

Aspect SAST (Source Code Scanning) Vulnerability Scanning Penetration Testing
Testing Type White-box Grey-box Black-box
Target Source code & logic OS, CMS, frameworks Full systems & defenses
Method Analyze code for logic or security flaws Scan configs & component versions Simulate real cyberattacks
Execution Automated (CI/CD ready) Automated, scheduled Manual + tool-assisted
Common Use DevSecOps / secure coding IT ops / compliance checks Risk assessment / audit tests
Advantages Early detection, low fix cost Broad coverage, fast scans Realistic risk validation
Limitations Misses runtime issues May include false positives Costly & time-consuming

Static vs Dynamic Scanning: SAST vs DAST

Static and dynamic scanning are two key application security testing tools in the software development lifecycle (SDLC), each protecting different stages of your software.

SAST

Static Application Security Testing

Used early in development, SAST analyzes source code to detect logic flaws, variable risks, hardcoded keys, and common vulnerabilities like SQL Injection or XSS. Early detection helps teams resolve issues faster and reduce remediation effort.

DAST

Dynamic Application Security Testing

DAST simulates external hacker attacks through black-box testing on live applications, exposing runtime vulnerabilities that static analysis can’t detect.

Best Practice

Combine SAST and DAST to secure applications from code to runtime. This dual-layer approach ensures a resilient, secure development workflow while maintaining efficiency and scalability.