Penetration Testing & Vulnerability Assessment
Expert-validated vulnerability assessments for web, mobile, APIs and systems, with reproduction evidence and remediation guidance.
Scenario-based testing of authentication, authorization and business workflows
We assess authentication, authorization, business workflows and risks from chained vulnerabilities across web and mobile applications, APIs and systems.
We combine automated checks suited to the environment with manual validation by specialists. Findings include reproduction evidence, impact, remediation priorities and guidance.
Core services
Apply analysis and validation suited to web applications, mobile apps, infrastructure and source code.
Web application penetration testing
Manual testing of OWASP Top 10 risks and critical business logic vulnerabilities
- Test for SQL injection, cross-site scripting (XSS), SSRF and file upload vulnerabilities
- Validate authentication and session hijacking, IDOR and privilege escalation scenarios
- Analyze parameter tampering at RESTful and GraphQL backend API endpoints
Mobile application security assessment (iOS / Android)
Review tamper resistance, integrity verification and local application data
- Test bypasses of root and jailbreak detection and anti-debugging mechanisms
- Analyze decompiled code, obfuscation and exposed cryptographic keys
- Check local SQLite and sandbox storage for personal data and tokens stored in plaintext
Network and internet-facing infrastructure penetration testing
Trace intrusion paths through exposed servers and firewall configuration weaknesses
- Check externally exposed ports and validate known CVE vulnerabilities for agreed targets
- Analyze unauthorized access risks at VPN, VDI and remote working gateways
- Simulate lateral movement from an initial foothold into the internal network
Source code security assessment (secure coding)
Static and dynamic source code analysis to identify security weaknesses during development and guide remediation
- Assess compliance with Korea's Ministry of the Interior and Safety software development security guide and relevant requirements
- Identify weaknesses in input validation, security configuration and error handling within the agreed source code scope
- Provide practical secure patch examples for developers
AI service security assessment
Assess prompt injection, sensitive information disclosure, access permissions and external tool integration risks in LLM, RAG and other AI-based services, according to the target environment.
- Check for information disclosure through prompt injection and instruction bypasses
- Validate permissions for RAG-retrieved documents and data separation between users and organizations
- Review AI agent permissions for external tool and API calls, and risks in output handling
Detailed checks and engagement scope are agreed based on the service configuration and client requirements.
Penetration testing process
Within the authorized scope, we prioritize system stability while validating attack scenarios and recommending improvements.
01
Authorization and information gathering
Agree on service scope and permitted testing windows, then gather external information and understand the architecture using authorized IP addresses.
02
Scenario-based penetration testing
Combine automated checks suited to the target with expert manual validation to assess attack paths involving authentication, authorization, workflows and chained vulnerabilities.
03
Reporting and remediation guidance
Deliver detailed reports with evidence and reproduction steps, plus practical guidance for security patches and corrective actions.
Frequently asked questions
What can be assessed?
We assess web and mobile applications, APIs and infrastructure. Specific checks, including source code analysis, are selected for the target systems and assessment objectives.
What is agreed before an assessment?
Target systems, authorized scope, testing times and access methods are agreed in advance. Account permissions and test scenarios are defined with the potential operational impact in mind.
What does the assessment report contain?
The report records the assessment scope and findings. Identified vulnerabilities are explained with supporting evidence and remediation guidance.
How is AI analysis used during an assessment?
Where needed, AI assists analysis only after agreeing with the customer on its scope and data handling conditions. Assessment findings are reviewed and validated by specialists.
The scope of work and deliverables are determined by the target environment and the agreed engagement.
Validate security from an attacker's perspective
Identify vulnerabilities before launch and support a secure release with practical remediation guidance.