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Enterprise Cyber Security

Mobile Application Security Testing for UK Businesses

Find and fix insecure data storage, weak authentication and exposed API traffic in your iOS and Android apps before attackers reverse-engineer them.

Our certified engineers combine static and dynamic analysis with manual testing against the OWASP MASVS to give you a clear, prioritised remediation plan.

ISO 27001
CREST
Cyber Essentials Plus
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Direct Security Desk

Request Free Security Scoping

Confidential
Strictly Confidential • NDA Signed Prior to Engagement
500+
Assessments delivered
200+
Mobile apps tested
iOS and Android
48h
Time to first findings
After kickoff
24/7
Expert support
Overview

About Mobile Application Security

Why structured, proactive security testing is essential for your organization

Definition & Approach

Definition & Approach

A mobile application security assessment tests your iOS and Android apps, their backend APIs and the way they store and transmit data, using the OWASP MASVS and MASTG as a benchmark.

Key Highlights:
  • Static and dynamic app analysis
  • Local data storage and platform review
  • Backend API and network traffic testing
Business Urgency

Business Urgency

Mobile apps run on devices you do not control and can be downloaded, decompiled and tampered with by anyone. A single flaw can expose customer data and damage trust in your brand.

Defense-in-Depth Architecture

Holistic Protection Across Every Attack Surface

Our testing methodologies evaluate entry points, authentication mechanisms, network boundaries, and business logic.

Boundary Hardening
Firewalls, TLS & Endpoints
Identity & RBAC
Auth, Tokens & Privilege
Data Protection
PII, Databases & Encryption
Continuous Retest
Verification & Sign-off
Services & Scope

What our mobile application security assessment covers

Native, hybrid and cross-platform apps, tested from the device through to the backend.

Static

Static Code & Binary Analysis

Decompile and review your app package for hard-coded secrets, weak logic and risky libraries.

Key Vectors Tested:
Hard-coded keys and credentialsVulnerable third-party librariesWeak obfuscation
Dynamic

Dynamic Runtime Testing

Test the running app on real devices to see how it behaves under attack.

Key Vectors Tested:
Runtime manipulation and hookingJailbreak and root detection bypassDebugger and emulator checks
Data

Local Data Storage

Detect sensitive data left in files, databases, logs, backups and the clipboard.

Key Vectors Tested:
Unencrypted local databasesSensitive data in logs and cachesInsecure keychain or keystore use
Network

Network & API Communication

Check TLS, certificate pinning and the backend APIs that the app depends on.

Key Vectors Tested:
Missing or weak certificate pinningCleartext trafficBroken API authorisation

Authentication & Session Management

Test login, biometrics, token handling and session expiry across the app.

Platform & Configuration Review

Review permissions, deep links, exported components and platform-specific settings.

Why you need this

Why you need a mobile application security assessment

Key Perspective 1
Attackers can install your app, inspect it and attack its backend at their own pace. Weaknesses in storage, authentication and APIs are often only visible when the app is tested on a real device.
Key Perspective 2
An independent assessment gives you evidence for customers, app stores, insurers and regulators, and a prioritised plan your development team can act on.
Why Manual Penetration Testing Matters

Scanner alone vs Goognu hybrid

Enterprise Standard
Capability / FeatureAutomated Scanners AloneGoognu Hybrid (Auto + Manual)
Known vulnerability and library detection✕ YesYes, verified by an engineer
Runtime tampering and bypass testing✕ LimitedYes
Business-logic and authorisation flaws✕ NoYes
Prioritised remediation guidance✕ GenericTailored to your app
Key Benefits

Key Benefits of Our Security Assessments

Actionable protection designed to enhance your operational resilience and regulatory standing

Clear priorities

Findings ranked by real-world risk, not just severity scores.

iOS and Android coverage

Testing on real devices across both platforms and their latest OS versions.

Audit-ready evidence

Reports mapped to OWASP MASVS, ISO 27001 and GDPR for customers and auditors.

Free retest

We verify your fixes and confirm that issues are closed.

Our Process

Systematic Security Methodology

A five-step process from scoping to retest.

01
Phase 1

Scoping

Agree platforms, app builds, test accounts and rules of engagement.

Deliverable:Scope document
02
Phase 2

Static Analysis

Decompile and review the app package, configuration and dependencies.

Deliverable:Static analysis results
03
Phase 3

Dynamic & Manual Testing

Test the running app and its backend on real devices, including tampering and business-logic abuse.

Deliverable:Verified findings with evidence
04
Phase 4

Reporting & Debrief

Deliver findings ranked by risk and walk your team through remediation.

Deliverable:Executive summary and technical report
05
Phase 5

Retest

Re-test fixed issues and confirm they are closed.

Deliverables

What You Receive Upon Completion

Clear, executive-level summaries paired with granular remediation guidance for your engineering teams

For Leadership

Executive summary

A short, plain-English view of your mobile app risk and next steps.

Standard Deliverable
For Engineers

Technical report

Every finding with evidence, screenshots and step-by-step remediation.

Standard Deliverable
For Customers and Auditors

Retest letter

Confirmation that critical and high issues have been fixed.

Standard Deliverable
Zero Obligation Scoping

Strengthen Your Security Posture Today

Don't wait for a high-profile security breach or compliance violation to expose vulnerabilities in your systems.

Goognu's certified security specialists deliver actionable, zero-false-positive assessments tailored to your environment. Contact our security team today for a confidential, no-obligation scoping session.

No commitment required
Response within 24 hours
Strict NDA protection
CREST & CEH certified
Frequently Asked Questions

Mobile Application Security FAQs

Common questions about scoping, methodologies, testing windows, and deliverable reports

Yes. We test native iOS and Android apps as well as hybrid and cross-platform apps such as React Native and Flutter.

Have custom compliance or audit requirements?

Our team routinely tests against ISO 27001, SOC 2, PCI-DSS, Cyber Essentials Plus, and GDPR standards.

Consult with our security engineers