Mobile Application Penetration Testing

Mobile application penetration testing helps identify vulnerabilities in Android and iOS applications before attackers can exploit them. We assess the security of local data storage, server communication, authentication, APIs, protection against reverse engineering, and anti-tampering mechanisms. Testing is performed by certified ethical hackers following the OWASP Mobile Application Security Testing Guide (MASTG) and OWASP Mobile Top 10, with every finding manually verified and accompanied by specific remediation recommendations.

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Why Test Mobile Applications?

Mobile applications process sensitive user data, communicate with backend systems, and often store data directly on the device. Inadequate security can lead to credential theft, compromised user accounts, or abuse of the application itself. Mobile application penetration testing simulates real-world attack scenarios and verifies whether identified vulnerabilities can actually be exploited. Our ethical hackers combine automated tools with manual testing based on the OWASP Mobile Application Security Testing Guide (MASTG), the OWASP Mobile Application Security Verification Standard (MASVS), and the OWASP Mobile Top 10. The result is not just a list of findings, but verified vulnerabilities supported by evidence of exploitability and specific remediation recommendations. Regular penetration testing helps organizations protect sensitive user data, reduce security risks, and support compliance with standards and regulations such as NIS2, DORA, ISO 27001, and PCI DSS. It also provides assurance that the mobile application can withstand attacks that automated security scanners may fail to detect reliably.

Protection of Sensitive Data

We verify that personal data, authentication tokens, API keys, and other sensitive information are properly protected both at rest and in transit.

Prevention of Financial and Operational Damage

We identify vulnerabilities that could lead to user account compromise, unauthorized transactions, or reputational damage.

Support for Security Compliance

Penetration testing results can support compliance with NIS2, DORA, ISO 27001, PCI DSS, and other security requirements.

Greater Trust from Customers and Partners

A secure mobile application strengthens user trust and reduces the risk of security incidents that could negatively affect your organization's reputation.

What We Test

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Local Data Storage

We assess the security of data stored on the device, including databases, caches, files, and sensitive information.

Server Communication

We verify communication encryption, correct TLS implementation, certificate validation, and resilience against Man-in-the-Middle attacks.

Authentication and Authorization

We test user authentication, session management, tokens, and multi-factor authentication.

Reverse Engineering

We assess the application's resilience against decompilation, source code analysis, and extraction of sensitive information.

Anti-Tampering Protection

We test the application's resilience against rooting, jailbreaking, hooking, dynamic analysis, and other manipulation techniques.

Backend APIs

We assess the security of REST and GraphQL APIs used by the mobile application to communicate with backend systems.

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What Mobile Application Penetration Testing Can Reveal

Mobile application penetration testing goes beyond identifying individual technical vulnerabilities. It also assesses how multiple weaknesses can be combined to gain unauthorized access to sensitive data, compromise a user account, or bypass the application's security controls. We test both Android and iOS applications and assess their resilience against attacks targeting local storage, server communication, APIs, and the mobile device itself. Common findings include:

Improper storage or handling of sensitive data can expose credentials, authentication tokens, personal data, or other confidential information stored on the device.

Insufficient encryption, incorrect TLS implementation, or improper certificate validation can allow attackers to intercept or manipulate communication between the mobile application and the server.

Flaws in authentication, session management, or authentication tokens can allow attackers to bypass authentication, hijack sessions, or gain access to another user's account.

Insecure backend APIs can allow unauthorized access to application data and functionality, authorization bypass, or manipulation of requests.

Insufficient application protection can allow attackers to decompile the application, analyze its code, and obtain information about its logic, APIs, or security mechanisms.

We assess whether mechanisms designed to prevent the application from running or being abused on rooted or jailbroken devices can be bypassed.

Using hooking, dynamic analysis, and other techniques, we assess whether an attacker can modify the application's behavior at runtime, bypass security controls, or manipulate processed data.

Insecure databases, files, caches, or other local storage mechanisms can allow attackers to extract sensitive data stored directly on the mobile device.

Free Report

Discover What Hundreds of Real-World Penetration Tests Reveal

Mobile applications handle sensitive data, communicate through APIs, and connect to backend systems. Download our free Ethical Hacking Report 2025 and discover what we found across 628 penetration tests and an analysis of 3,293 identified vulnerabilities in Citadelo projects.

The most common vulnerabilities found in real-world security projects
How vulnerabilities have evolved compared to 2024
Analysis of mobile and web applications, APIs, cloud environments, infrastructure, and AI
Practical recommendations from experienced ethical hackers

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Choose Your Penetration Testing Type

Penetration Testing

Penetration testing (pentesting) simulates real-world cyberattacks to identify vulnerabilities before attackers can exploit them. Learn how penetration testing works, what types of pentests we perform, what you receive after the test, and how we help you reduce cybersecurity risks.

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Web Applications

We test web applications against attacks such as SQL Injection, Cross-Site Scripting (XSS), authentication flaws, and privilege escalation. Our web application penetration testing follows the OWASP Web Security Testing Guide and OWASP Top 10, with every finding manually verified.

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AI and LLM Systems

We test the security of AI applications, chatbots, AI agents, and RAG systems. AI penetration testing assesses resilience against prompt injection, jailbreak attacks, sensitive data leakage, model manipulation, and abuse of external tools based on the OWASP Top 10 for LLM Applications.

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Network Infrastructure and Internal Systems

We simulate attacks against internal and external infrastructure, including firewalls, VPNs, Active Directory, servers, and databases. Network penetration testing assesses network configuration, segmentation, privilege escalation, and an attacker's ability to move laterally across the environment.

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Cloud Environments

We assess the security of AWS, Microsoft Azure, and Google Cloud Platform (GCP) environments by simulating real-world attacks. Cloud penetration testing covers IAM, cloud storage, Kubernetes, network rules, and exposed services.

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APIs and Microservices

API and microservices penetration testing assesses the security of REST, GraphQL, and other APIs, including communication between microservices. We test OAuth, JWT, API gateways, authorization, input validation, and API resilience based on the OWASP API Security Top 10.

Learn about APIs