Authorized ADA MASA Assessment Services MASA Mobile Application Security Assessment Services Mobile Application Security Assessment for Google OAuth Restricted Scope Verification NetSentries helps organizations complete Mobile Application Security Assessment (MASA) requirements for Android and iOS applications that collect, process, transmit, or store sensitive user data. MASA provides an independent evaluation of a mobile application's security posture and validates compliance with recognized mobile security best practices.
Start MASA Scoping Questionnaire See the assessment process
MASA assessment at a glance
3 ADA assurance levels
AL0 · AL1 · AL2
OWASP MASVS Basis for MASA
requirements
Android + iOS Platforms covered
by the assessment
5 Service stages from
scoping to validation
Developed by the App Defense Alliance (ADA) and based on the OWASP Mobile Application Security Verification Standard (MASVS), MASA is designed to assess key areas such as data protection, authentication, cryptography, network security, platform interaction, application integrity, and vulnerability management. Successful completion of a MASA assessment demonstrates that an application has undergone an independent security review against established mobile security requirements.
As an experienced mobile application security assessment provider, NetSentries supports customers throughout the MASA lifecycle, including scoping, onboarding, evidence review, mobile application security testing, remediation validation, and assessment reporting. Our methodology combines industry-recognized testing practices with deep expertise in Android and iOS security to help organizations achieve assessment readiness and demonstrate their commitment to protecting user data.
What is MASA What Is MASA? The Mobile Application Security Assessment (MASA) is a security assessment framework that evaluates whether mobile applications can securely protect user data and resist common mobile threats. It helps developers demonstrate adherence to recognized mobile security standards.
Key security areas under assessment MASA assesses key security areas such as authentication, secure data storage, cryptography, network communications, application integrity, and vulnerability management. The framework promotes a consistent and risk-based approach to mobile application security.
Assessed areas
Authentication Secure data storage Cryptography Network communications Application integrity Vulnerability management
Independent validation of security posture Based on the OWASP Mobile Application Security Verification Standard (MASVS), MASA provides independent validation of an application's security posture. Successful assessments help organizations build user trust and demonstrate their commitment to mobile security best practices.
OWASP MASVS Mobile Application Security Verification Standard — the basis for MASA requirements.
When you need it When Do You Need MASA?
You may need a MASA assessment if your mobile application handles sensitive user data, is distributed through major app stores, or is required to demonstrate compliance with recognized mobile security standards. MASA provides independent validation that the application follows established mobile security best practices. Organizations often pursue MASA to verify the security of mobile applications that process personal, financial, healthcare, or enterprise data. The assessment helps identify and address security weaknesses related to data protection, authentication, cryptography, network communications, and application integrity.
Organizations should follow the applicable MASA requirements and engage an authorized assessment provider to determine the appropriate scope and assurance level for their mobile application.
Examples of applications that may require MASA include:
Mobile banking and financial services applications.
Healthcare and telemedicine applications handling sensitive patient data.
Enterprise mobile applications accessing corporate systems and data.
Consumer mobile apps that collect, process, or store personal information.
Applications seeking independent security validation to meet customer, regulatory, or business requirements.
Assurance levels MASA Assessment Levels The App Defense Alliance (ADA) certification framework defines multiple assurance levels based on the application profile, risk level, and platform-specific requirements. NetSentries offers assessments for the ADA Mobile Profile Certification (ADA MPC) across the applicable assurance levels.
Self attestation AL0 Assurance Level 0 (AL0 - Self Attestation) At this foundational assurance level, developers perform a self-assessment against the applicable ADA requirements and attest that their application meets all relevant security controls. Compliance is documented through a structured questionnaire, providing an initial level of security assurance.
Lab reviewed AL1 Assurance Level 1 (AL1 - Lab Reviewed) This entry-level assessment involves an automated scan of your application, followed by a review conducted by our testing lab. You provide evidence to demonstrate compliance with ADA Mobile Profile requirements.
Lab tested AL2 Assurance Level 2 (AL2 - Lab Tested) For a more comprehensive evaluation, our authorized lab conducts a thorough manual review of your application, ensuring full compliance with all ADA Mobile Profile requirements through rigorous testing and validation.
Successfully completing a Mobile Profile assessment enables developers to display the Independent Security Review Badge in the Google Play Store Data Safety section, providing users with confidence that the application has undergone an independent security validation and follows recognized security best practices.
Our services NetSentries MASA Assessment Services
NetSentries provides end-to-end support for MASA assessments, from initial scoping to final validation support. Our services are designed to help your team understand the applicable MASA requirements, prepare required evidence, complete security testing, remediate identified issues, and progress toward successful assessment closure.
01 MASA Scoping and Onboarding
We begin by understanding your mobile application, target platforms, security requirements, application architecture, data flows, and the applicable MASA assessment scope. This helps us determine the appropriate assessment approach and security requirements for your app. Key activities include:
Data Security: Secure handling, storage, and transmission of sensitive user data throughout the mobile application lifecycle.
Authentication and Authorization: Robust mechanisms to verify user identity and enforce appropriate access permissions.
Secure Network Communications: Protection of data in transit through secure communication protocols and encryption.
Platform Interaction: Safe and secure interaction with the underlying mobile operating system and platform services (Android/iOS).
Secure Code Quality: Adherence to secure coding standards and the use of trusted, up-to-date libraries and dependencies.
Security Testing & Vulnerability Management: Comprehensive testing to identify, assess, and remediate security weaknesses.
Application Integrity: Implementation of controls to detect and prevent tampering, reverse engineering, and unauthorized modification.
02 Evidence Review and Readiness Assessment
We help organizations prepare, review, and validate the documentation and evidence required for a successful MASA assessment. Our team works closely with developers to identify gaps, ensure assessment readiness, and streamline the certification process. Typical evidence may include:
Completed onboarding and assessment questionnaires.
Mobile application architecture and design documentation.
Data flow diagrams and sensitive data handling details.
Mobile platform information (Android and/or iOS) and application versions.
Application binaries (APK/AAB/IPA) and supporting build information.
Test user accounts and application access details.
Security testing results, including vulnerability assessments and penetration testing reports.
Secure development and vulnerability management processes.
Evidence of remediation for previously identified security findings.
Existing security certifications, audits, or compliance reports, where applicable.
The MASA certification process may include onboarding activities, application analysis, security testing, evidence review, vulnerability validation, remediation verification, assessment reporting, and independent certification review to confirm compliance with applicable mobile security requirements.
03 Security Testing and Validation
NetSentries performs comprehensive security testing and validation activities based on the applicable MASA requirements, assessment level, and mobile application scope. Our testing approach is aligned with industry-recognized mobile security standards, including OWASP MASVS and MASA assessment requirements. Testing activities may include:
Mobile application security testing for Android and iOS applications.
Static Application Security Testing (SAST) and code analysis.
Dynamic Application Security Testing (DAST) and runtime behavior analysis.
Authentication and authorization security validation.
Secure data storage and sensitive information protection review.
Network communication and transport layer security testing.
Cryptography implementation and key management review.
Platform interaction and permission model assessment.
Application integrity, anti-tampering, and reverse-engineering resistance validation.
Vulnerability verification, remediation testing, and retesting of identified findings.
Our assessment methodology is aligned with MASA requirements and OWASP MASVS controls. Security findings are evaluated against recognized industry standards and common mobile security weaknesses, helping organizations validate their application's security posture and readiness for certification.
04 Remediation Support
If security gaps are identified, NetSentries provides clear and practical remediation guidance to help your engineering team address the findings. Our remediation support may include:
Explaining the security impact of each finding.
Prioritizing vulnerabilities based on risk.
Providing remediation recommendations.
Supporting secure design and configuration improvements.
Validating fixes after remediation.
Preparing closure evidence for assessment submission.
Our goal is to make the remediation process clear, actionable, and aligned with assessment expectations.
05 Reporting and Letter of Validation Support
After testing and validation are completed, NetSentries supports the preparation of assessment outputs required for the MASA process. Deliverables may include:
Assessment scope summary.
Security assessment report.
Findings and remediation report.
Retest and closure validation.
Evidence review summary.
Developer Test Report and Compliance Report support, where applicable.
Letter of Validation support after successful assessment completion.
Google states that, upon successfully passing the security assessment, the application is awarded a Letter of Validation from the security assessor.
Methodology Our MASA Engagement Methodology
Phase 1 Scoping and Onboarding Define the mobile application scope, identify target platforms (Android/iOS), understand application architecture, data flows, assessment requirements, and gather application binaries, test accounts, and supporting documentation.
Phase 2 Evidence Review and Testing Review assessment questionnaires, architecture documents, security policies, and supporting evidence. Perform mobile application security testing, including static and dynamic analysis, platform security validation, and vulnerability assessment activities.
Phase 3 Findings and Remediation Share identified security findings, explain potential risks and business impact, provide remediation guidance, and validate corrective actions through retesting and evidence review.
Phase 4 Reporting and Validation Support Prepare assessment reports and required deliverables, document compliance with MASA requirements, and support the certification review process through to successful assessment completion and issuance of the applicable validation outcome.
Deliverables MASA Deliverables Depending on the assessment scope and applicable requirements, NetSentries may provide the following deliverables:
Deliverable Description
MASA Scoping Summary Documents the mobile application(s), target platforms (Android/iOS), assessment scope, application versions, and components included in the engagement.
Evidence Checklist Lists the required documentation, application binaries, test accounts, architecture information, and supporting evidence needed for the assessment.
Security Assessment Report Provides a detailed summary of testing activities, identified vulnerabilities, risk ratings, business impact, and remediation recommendations.
Remediation Validation Report Confirms that identified security issues have been addressed and validates remediation through retesting and evidence review.
Developer Test Report Support Documents security observations and MASA control validation results, including application security strengths and areas for improvement.
Compliance Report Support Supports the preparation of required assessment artifacts and documentation needed for the MASA certification process, where applicable.
Letter of Validation Support Assists with the final review and validation process following successful completion of applicable MASA assessment requirements.
These deliverables provide clear visibility into your mobile application's security posture, help demonstrate compliance with MASA requirements, and support successful completion of the mobile application security assessment process.
Why NetSentries Why Choose NetSentries?
Authorized ADA Assessment Capability NetSentries supports MASA assessments as part of the App Defense Alliance assessment ecosystem. Our team helps customers navigate the assessment process, prepare evidence, complete testing, and progress toward successful validation.
Practical Experience with Google OAuth Verification
We work with organizations seeking independent validation of their mobile application security and help them understand MASA requirements, assessment readiness, evidence preparation, security testing expectations, and certification workflows. Our team supports customers throughout the MASA journey, from initial scoping and documentation review to security testing, remediation validation, and final assessment reporting. We help streamline the process by identifying potential gaps early, preparing the required evidence, and ensuring applications are aligned with recognized mobile security best practices. With experience assessing Android and iOS applications across a variety of industries, we help organizations efficiently navigate MASA requirements and demonstrate their commitment to protecting user data through independently validated mobile security controls.
Security-Led Assessment Approach Our MASA services are delivered by experienced mobile application security specialists, penetration testers, and security consultants with deep expertise in Android and iOS security. We understand modern mobile application architectures, secure coding practices, mobile platform security controls, and data protection requirements. Our team combines industry-recognized testing methodologies with practical security experience to identify risks, validate security controls, and help organizations achieve MASA compliance with confidence.
Clear Remediation Guidance We do not stop at reporting findings. Our team helps customers understand the root cause, business impact, and remediation approach for identified security gaps.
Customer-Friendly Engagement Model Our process is structured to reduce assessment friction. We provide clear onboarding instructions, evidence requirements, testing expectations, remediation guidance, and reporting support throughout the engagement.
Who it's for Who Should Use This Service? NetSentries MASA Assessment Services are suitable for:
Mobile application developers seeking independent security validation for Android and iOS applications.
Organizations preparing for a MASA assessment or mobile security certification.
Businesses that handle sensitive user, financial, healthcare, or enterprise data through mobile applications.
Product teams looking to demonstrate compliance with recognized mobile application security standards.
Organizations requiring independent verification of mobile application security controls and secure development practices.
Developers seeking to strengthen user trust and showcase validated security practices through recognized assessment programs.
Readiness Common MASA Readiness Requirements Before starting a MASA assessment, customers should be prepared to provide:
10 Items to prepare
01Mobile application name, business purpose, and target audience.
02Target platforms (Android and/or iOS) and application versions in scope.
03Application binaries (APK, AAB, or IPA files) for testing.
04Test user accounts with appropriate access levels and user roles.
05Mobile application architecture and data flow documentation.
06Details of how sensitive user data is collected, processed, stored, transmitted, and deleted.
07Information on authentication, authorization, and identity management mechanisms.
08API endpoints, backend services, and third-party integrations used by the application.
09Results of previous security assessments, penetration tests, or compliance reviews, if available.
10Technical and business points of contact for assessment coordination and remediation activities.
Providing complete and accurate information at the beginning of the engagement helps streamline the assessment process, reduces testing delays, and enables more efficient validation of MASA security requirements. Start MASA Scoping Questionnaire
Get started Start Your MASA Assessment
Whether you are preparing for a MASA certification, seeking independent mobile application security validation, or looking to strengthen your application's security posture, NetSentries can help you navigate the assessment process with confidence. Our team supports you through scoping, evidence preparation, security testing, remediation validation, and assessment reporting. We work closely with organizations to simplify MASA requirements, identify security gaps, and ensure readiness for a successful assessment outcome.
Need independent security validation for your Android or iOS application? Start your MASA assessment with NetSentries. Start MASA Scoping Questionnaire
Have questions before starting? Speak with our MASA assessment team. Contact Sales
Contact us at sales@netsentries.com or complete the MASA Scoping Questionnaire to begin your assessment and take the next step toward independently validated mobile application security.
Disclaimer MASA assessment outcomes, certification decisions, validation status, and recognition within applicable mobile security programs remain subject to the requirements and review processes of the relevant certification bodies, platform providers, and assessment authorities. NetSentries supports customers throughout the assessment, testing, remediation, and validation process based on the agreed scope, evidence provided, and applicable MASA requirements. Successful completion of a MASA assessment does not guarantee certification or acceptance by any third party. Final approval, certification status, and any associated recognition remain at the discretion of the applicable program owner, platform provider, or certification authority.