Mobile Application Security Testing Service

What Is Mobile Application Security Testing?

Mobile Application Security Testing (Mobile Application Penetration Test) is a comprehensive penetration testing service carried out to assess the security posture of applications running on the Android and iOS platforms.

The assessment covers far more than the screens a user sees: client-side security, API communications, authentication mechanisms, data storage practices, cryptographic implementations, certificate validation and business logic are all analysed using the same techniques a real attacker would use.

The goal is to identify, verify and report — ranked by risk — the vulnerabilities that could allow a malicious user or attacker to reach user data, corporate systems or critical services through the application.

SecureSys mobile application security tests are conducted in line with the OWASP Mobile Top 10, OWASP MASVS, PTES and NIST methodologies.

Why Should You Run a Mobile Application Security Test?

Mobile applications have become a core component of banking, healthcare, e-commerce, public services and corporate business processes. A single vulnerability in a mobile application can lead to:

• Account takeover
• Exposure of sensitive data
• Unauthorised transactions
• Abuse of API services
• KVKK and GDPR breaches
• Damage to brand reputation
• Financial loss

Mobile application security testing surfaces these risks before attackers do, so the necessary controls can be put in place.

Scope of the Service

The following checks are performed as part of a mobile application security test.

Android (APK) Security Testing

APK analysis

Code security

Manifest review

Debug configuration

Root detection mechanisms

Anti-tamper controls

Reverse engineering analysis

iOS (IPA) Security Testing

IPA analysis

Jailbreak detection

Binary analysis

Runtime security

Data storage security

Keychain review

Authentication Security

Authentication mechanisms

Session management

MFA controls

JWT security

Token handling

Session security

Authorisation Testing

Privilege escalation

Broken access control

Role manipulation

IDOR

Authorisation bypass scenarios

API Security

REST API

GraphQL API

JWT

OAuth

Rate limiting

BOLA

Broken authentication

Communication Security

HTTPS

TLS configuration

Certificate pinning

MITM testing

SSL validation

Data Security

Local storage

SQLite

Shared Preferences

Keychain

File system

Sensitive data storage controls

Runtime Analysis

Frida

Objection

Dynamic analysis

Hooking

Memory inspection

Runtime manipulation

Reverse Engineering

APK decompilation

Smali analysis

Binary analysis

Code manipulation

Signing verification

Vulnerabilities Covered

The following critical vulnerability classes are analysed during mobile application penetration testing.

• OWASP Mobile Top 10
• Insecure data storage
• Insecure authentication
• Insecure authorisation
• Client-side injection
• Weak cryptography
• Reverse engineering
• Code tampering
• Insecure communication
• Improper certificate validation
• Hardcoded credentials
• Sensitive information disclosure
• Session management flaws
• Local data exposure
• API security weaknesses
• Business logic vulnerabilities

How the Testing Process Works

Scoping

The test scope is agreed for Android, iOS or both platforms.

Information Gathering

The application architecture, API services and communication structure are analysed.

Static Analysis

APK and IPA packages are examined in detail.

Dynamic Analysis

The application is run on physical devices and attack scenarios are executed against it.

Vulnerability Verification

Every finding is confirmed manually before it enters the report.

Risk Analysis

Risk levels are assigned using CVSS scores.

Technical and Executive Reporting

Separate reports are prepared for the technical team and for senior management.

Retest

Remediated vulnerabilities are tested again and the fixes are verified.

What You Receive at the End of the Test

• Executive summary
• Technical penetration test report
• Risk prioritisation
• Proof-of-concept evidence
• Affected assets
• Remediation recommendations
• CVSS risk scores
• OWASP Mobile Top 10 mapping
• Retest results report

Why SecureSys?

Mobile application security cannot be established with automated tools alone. Business logic flaws, client-side manipulation, API authorisation weaknesses and runtime attacks in particular require hands-on expertise.

At SecureSys we treat mobile penetration testing as more than a vulnerability scan — we approach it from a genuine attacker's perspective. Applications running on Android and iOS are analysed as a whole: client-side security, API services, data storage, authentication mechanisms and business logic, with every finding verified before it is reported.

Our services follow nationally and internationally recognised security standards, and our reporting is structured so that both technical teams and senior management can act on it.

The SecureSys Difference

• Expert penetration testing under TSE TS 13638
• Testing aligned with the OWASP Mobile Top 10 and MASVS methodologies
• Comprehensive security analysis across Android and iOS
• Real, manually verified findings
• Attack scenarios focused on APIs, the client and business logic
• Risk prioritisation with actionable remediation guidance
• Detailed reporting at both technical and executive level
• Post-remediation verification (retest) support

Which Organisations Need Mobile Application Security Testing?

Mobile application security testing is critical for the following sectors and organisation types.

• Banking and finance
• Insurance companies
• E-commerce platforms
• Healthcare providers
• Public sector institutions
• Defence industry
• Telecom operators
• Logistics companies
• Energy companies
• Education platforms
• SaaS vendors
• FinTech startups

Android (APK) Security Testing

Android is one of the most frequently targeted mobile platforms, because of its open architecture and how readily APK files can be analysed. Android security testing looks beyond the user interface to the application package (APK), the source code structure, data storage practices, API communications and runtime behaviour.

Using real attack scenarios, we assess the application's resistance to reverse engineering, its certificate validation mechanisms, how its security controls behave on rooted devices, and how well sensitive information is protected on the client side. We also examine the application's communication with its server-side API services to evaluate authentication and authorisation weaknesses.

Checks Performed During Android Security Testing

• APK (Android Package) analysis
• AndroidManifest.xml security review
• Reverse engineering (JADX, Apktool and similar)
• Smali code analysis
• Hardcoded credential detection
• Local storage security
• Shared Preferences review
• SQLite database analysis
• WebView security
• Root detection testing
• SSL pinning verification
• Certificate pinning bypass testing
• Man-in-the-middle (MITM) scenarios
• Runtime manipulation (Frida, Objection)
• API security analysis
• Authentication and authorisation testing
• Sensitive data leakage analysis
• OWASP Mobile Top 10 and MASVS compliance checks

iOS (IPA) Security Testing

Although iOS has a more closed architecture from a security standpoint, poorly built applications can still introduce serious risk. iOS security testing examines the IPA package, data protection mechanisms, Keychain usage, certificate validation, jailbreak detection and the application's runtime behaviour in detail.

During testing we evaluate the application's resistance to reverse engineering, the safety of sensitive information stored on the client, its API communications and its alignment with Apple's security architecture. Controls that are critical in finance, healthcare and public sector applications are verified manually.

The following checks are performed during iOS security testing:

• IPA (iOS Application Archive) analysis
• Binary (Mach-O) file analysis
• Reverse engineering
• Jailbreak detection testing
• Keychain security
• UserDefaults analysis
• Local storage review
• NSFileProtection configuration
• ATS (App Transport Security) controls
• SSL/TLS configuration
• Certificate pinning testing
• Man-in-the-middle (MITM) scenarios
• Runtime analysis (Frida, Objection)
• API security testing
• Authentication and authorisation analysis
• Sensitive data leakage checks
• OWASP Mobile Top 10 and MASVS compliance testing

Differences Between Android and iOS Security Testing

Both platforms serve similar functions, but their security architectures and attack surfaces differ. Test methodology is therefore applied in a platform-specific way.

Android security testing	iOS security testing
APK file analysis	IPA file analysis
AndroidManifest.xml review	Info.plist review
Root detection testing	Jailbreak detection testing
Shared Preferences analysis	Keychain analysis
SQLite data review	NSFileProtection checks
Smali code analysis	Mach-O binary analysis
APK reverse engineering	IPA reverse engineering
WebView security	WKWebView security
SSL pinning testing	Certificate pinning testing
Runtime manipulation	Runtime manipulation
API security testing	API security testing
OWASP Mobile Top 10	OWASP Mobile Top 10
MASVS controls	MASVS controls

The SecureSys Approach

At SecureSys we assess Android and iOS applications holistically — not only on the client side, but together with the API services the application depends on, its authentication mechanisms, business logic, data storage practices and runtime behaviour. This lets us surface not just platform-specific technical weaknesses but the end-to-end attack chains a real adversary could use, and report them as verified findings. The approach matters most in enterprise mobile applications, where partial coverage leaves real risk undiscovered.