SERVICES

Application Penetration Testing

Find hidden vulnerabilities, attack paths, 
and critical risks in your web, mobile, desktop, 
and API applications before they can be exploited.

Secure Your Applications

Application Security Assurance

OnDefend application testing validates security controls, maps real world attack paths, and uncovers high-impact vulnerabilities including business logic and API weaknesses attackers commonly exploit, strengthening your security posture while supporting compliance requirements for SOC 2, ISO 27001, HIPAA, PCI DSS, NIST, and other regulatory frameworks.

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Application Testing Capabilities

Dynamic Application Testing

Dynamic Application Security Testing (DAST) evaluates applications while running to identify exploitable vulnerabilities such as injection flaws, authentication weaknesses, and access control issues. By simulating real attacker behavior, we validate application security controls and help organizations reduce risk in deployed environments.

Source Code Review  

Static Application Security Testing (SAST) analyzes application source code to detect security flaws without executing it. This approach identifies insecure coding patterns, logic errors, and hidden vulnerabilities early, enabling developers to remediate issues before deployment and strengthen application security throughout the development lifecycle.

Applications Tested for Real-World Risk

We assess how effectively your security controls protect applications and software, helping you identify risk, prevent exploitation, and maintain confidence in your security posture.

Web Application Testing 

Web application security testing identifies vulnerabilities, business logic weaknesses, and access control issues that could be exploited by attackers. This testing supports organizations developing, maintaining, or modernizing web applications and provides assurance that application level security controls are functioning as intended.

Mobile Application Testing 

Mobile application security testing evaluates authentication, authorization, data storage, and backend integration within mobile applications. This testing supports organizations releasing or maintaining mobile software and helps validate that application security controls protect sensitive data and user interactions.

Desktop Application Testing

Desktop application security testing assesses how applications handle local execution, permissions, update mechanisms, and communication with backend services. This testing supports organizations deploying desktop software and helps ensure security controls operate effectively across user environments.

API Security Testing

API security testing evaluates authentication, authorization, input handling, and data exposure across application programming interfaces. This testing supports secure system integration and helps validate that application level controls prevent unauthorized access and misuse of data.

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Standard Pen Testing Only Finds 1/3 of Your Risk.

Our team of OnDefenders identifies vulnerabilities, design flaws, and access control weaknesses to reduce risk exposure and strengthen your overall application security posture, including:

Exploitable Vulnerabilities

Exploitable Vulnerabilities

Unpatched or outdated application components, libraries, and frameworks that can be exploited using publicly available techniques or exploits.

Business Logic Flaws

Business Logic Flaws

Application logic weaknesses that allow attackers to bypass intended workflows, abuse functionality, or manipulate transactions in ways not anticipated by developers.

Broken Authentication
and Authorization

Broken Authentication 
and Authorization

Weak authentication mechanisms, misconfigured authorization logic, or insecure session handling that enable unauthorized access or privilege escalation within applications.

Insecure API Endpoints

Insecure API Endpoints

APIs with weak authentication, authorization, input validation, 
or rate limiting that allow unauthorized data access, manipulation, or service abuse.

Input Validation 
and Injection Flaws

Input Validation 
and Injection Flaws

Improper handling of user supplied input that enables injection attacks such as SQL injection, command injection, or cross site scripting

Insecure Data Handling
 and Exposure

Insecure Data Handling and Exposure

Sensitive data exposed through improper storage, transmission, logging, or error handling within applications

Client Side Trust 
and Control Failures

Client-Side Trust and Control Failures

Overreliance on client-side validation or controls that can be bypassed through tampering, automation, or direct API interaction

Application Privilege 
Escalation Paths

Application Privilege Escalation Paths

Design flaws or misconfigurations that allow escalation from low privilege roles to sensitive application functions or data

Continuous Security Inspector Reveals the Rest

The Continuous Security Inspector Program uncovers the other two thirds of your risk by delivering continuous, intelligence-driven red team testing that leverages proprietary innovation and evolving offensive tradecraft.

Compound Attack Paths Across Application Layers

Compound Attack Paths Across Application Layers 

Chained exploitation paths formed by interacting logic flaws, configuration gaps, and trust assumptions that only emerge through continuous testing

Hidden Supply Chain and Dependency Risks

Hidden Supply Chain and Dependency Risks

Malicious or compromised third party libraries, SDKs, APIs, and integrations introduced through trusted development, build, or deployment processes

Cross Interface and 
Multi Service Abuse

Cross Interface and Multi Service Abuse

Attack paths that traverse web interfaces, APIs, background services, and backend systems to bypass security boundaries

Authentication and Session Breakdown Scenarios

Authentication and Session Breakdown Scenarios

Control failures created by the interaction of identity handling, token management, session state, and application logic

Long Lived and Low Noise Persistence Techniques

Long Lived and Low Noise Persistence Techniques

Abuse of legitimate application behavior to establish durable access without triggering alerts or obvious indicators

Conditional and State-Dependent Exploitation

Conditional and State-Dependent Exploitation

Exploitation paths that activate only under specific user actions, timing conditions, or application states

Trust Boundary and Integration Abuse

Trust Boundary and Integration Abuse

Exploitation of implicit trust between applications, identity providers, and connected services to enable lateral movement and privilege escalation 

Covert Data Misuse and Exfiltration Paths

Covert Data Misuse and Exfiltration Paths

Data extraction and misuse techniques that leverage normal application functionality to bypass monitoring and data protection controls

Discover OnDefend CSI

Giving You The Competitive Advantage

Let us give you a decisive advantage over adversaries by combining elite application security expertise, intelligence-driven testing, and validation that reflects real-world attacker behavior.

Elite Offensive Operators 

Our testing is led by deeply experienced network offensive security practitioners with advanced certifications in network penetration testing and offensive security. Our team specializes in acting like a persistent adversary to protect your organization from a real one. 

Intelligence-Driven Testing 

Testing is guided by a blend of external and proprietary threat 
intelligence, focusing on the most relevant attacker techniques, 
emerging threats, and high-impact 
paths to compromise. 

AI- and Automation 
Enhanced Coverage 

AI-driven automation and advanced analytics extend coverage across complex enterprise networks, 
expanding discovery of exposed services, trust relationships, segmentation failures, and lateral movement paths at scale.

Continuous Testing Capabilities 

Automation and analytics enable ongoing validation as networks evolve, 
our team is able to gain efficiencies with every assessment. Maintaining visibility into new exposures introduced by infrastructure changes, device additions, or configuration drift. 

Executive and Technical Reporting 

Clear reporting delivers prioritized, actionable findings for security teams while translating technical risk into business-level insights, aligning remediation efforts to both operational impact and business risk. 

Beyond Compliance Validation 

Testing aligns with NIST 800-115, PTES, and relevant network security guidance while validating real-world exploitability, demonstrating whether application controls actually prevent compromise 
beyond compliance requirements. 

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Our Team
Partners with Yours

Our team partners with yours to gain a deep understanding of your environment and objectives so we can effectively deliver clear communication, expert guidance, and actionable insight that ensures the outcomes align with your security and business goals.

Resources

Explore our comprehensive resource collection to enhance your organization’s security posture and stay ahead of potential threats.

Always Innovating

JAXUSA Partnership names OnDefend as Innovator of the Year.

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TikTok Partnership

HaystackID and OnDefend are furthering security of the TikTok U.S. platform & app.

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Application Penetration Testing FAQs

What is application penetration testing?

Application penetration testing is a security assessment that identifies and validates exploitable weaknesses in web, mobile, desktop, and API applications.

How is application penetration testing different from automated scanning?

Automated scans only detect basic issues while penetration testing validates real impact through hands-on exploitation.

What vulnerabilities are common in applications?

Frequent vulnerabilities found in applications include logic flaws, injection points, insecure authentication, exposed APIs, and data exposure.

Can APIs be penetration tested?

Yes. API testing identifies authorization issues, insecure endpoints, and integration weaknesses attackers often target.

How often should application penetration testing be performed?

Most organizations test annually, after major releases, or before launching new applications or features.

What is the difference between application penetration testing and the OnDefend Continuous Security Inspector program?

Application penetration testing is a point-in-time assessment that finds and validates exploitable vulnerabilities in your web, mobile, desktop, and API applications.

The OnDefend Continuous Security Inspector (CSI) program provides ongoing adversarial validation that uncovers hidden risks traditional testing cannot see. OnDefend CSI identifies supply-chain threats, tampered dependencies, covert C2 channels, insecure integrations, and other exposures that emerge as your application and environment change.

Secure your applications

Understand your real exposure with guidance from security experts.

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