Xiarch Mobile Application Security Testing is a professional penetration testing service that identifies vulnerabilities in mobile applications for both iOS and Android operating systems. The service examines mobile applications at multiple levels including storage, reverse engineering of application packages, database and configuration files analysis. The testing methodology includes reverse engineering the application package to check for misconfigurations and missing security defenses such as root detection, SSL pinning, and code obfuscation. Source code analysis is performed to identify hardcoded credentials, keys, and misconfigurations without requiring clients to provide source code. Application-level testing covers weak password policies, insecure password change functionality, and data extraction vulnerabilities. The service tests services, broadcast receivers, and activities to identify authentication bypasses and malicious interaction possibilities. API backend examination follows OWASP Top 10 methodology, covering common misconfigurations and business logic testing. The service simulates malicious applications on the device to check for vulnerabilities requiring such applications to exploit. Delivered as part of Xiarch Penetration Testing as a Service (PTaaS), the service includes access to SecurePortal and complementary tools. The assessment follows a structured methodology including scope definition, information gathering, enumeration, attack and penetration, reporting, and remediation discussion. Deliverables include a digital report with remediation steps and a security certificate after patch verification.