Insecure local storage
Sensitive data, tokens, credentials or caches written to the device without adequate protection.
Mobile app penetration testing
An app can leak data even with a secure backend, if the mobile client is never tested.
Mobile app penetration testing for iOS and Android, covering reverse engineering, local storage, backend and API communication, for apps handling sensitive data.
iOS and Android OWASP Mobile as the reference Binary, traffic and backend
When this matters
The app installed on the user's phone is attack surface too.
Unlike web or API testing, a mobile assessment looks at the installed binary, local storage, communication with services and how far an attacker can manipulate their own device. Flaws at that level do not show up in tests that only assess the backend — which is exactly why app analysis sits outside the standard scope of API testing.
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Apps handling sensitive or financial data
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Fintech and healthcare apps
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Before publishing to the stores
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Partner or regulator requirements
Coverage
What we assess in an iOS or Android app.
Depth depends on the platform, the use of native libraries and how critical the data the app handles is.
Insecure communication
Certificates, pinning, encryption and resistance to interception of traffic between app and backend.
Authentication and session
Biometrics, tokens, renewal, expiry and protection against reuse on compromised devices.
Reverse engineering
Obfuscation, binary protection, embedded keys and sensitive logic exposed on the client side.
Inside the delivery
See how this work takes shape.
From technical alignment to delivery, the work has to leave context, evidence and next steps visible to everyone involved.
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Process
An assessment that covers app, traffic and backend.
We test the installed binary, the traffic in transit and the endpoints the app consumes, with and without a compromised device.
Scope and rules of engagement
We document assets, access, limits, execution window and owners before any activity starts.
Guided assessment
Vorvex specialists carry out the work, with Apex supporting reconnaissance, correlation and evidence handling.
Validation and prioritization
Findings are analyzed for exploitability, technical impact and consequence for the business.
Report and retest
We deliver reproducible evidence and recommendations and, when contracted, validate the fixes you applied.
Deliverables
Findings that also inform mobile architecture decisions.
The delivery separates device, traffic and backend risk so each team can fix its own layer.
Executive view of risk
Exposure summary, priority impacts and next steps to support decisions and investment.
Evidence to fix with
Technical detail, context, reproduction steps and practical remediation guidance.
Traceable record
Scope, period, methodology and finding status documented for audit and accountability.
Frequently asked questions
Straight answers to help you plan the assessment.
If your question isn't here, talk to the team directly.
Ask on WhatsAppDoes mobile testing replace API testing?+
No. They complement each other: the mobile assessment covers the binary, the device and the communication, while API testing goes deeper into authentication, authorization and business rules on the backend.
Do you test hybrid apps like React Native and Flutter?+
Yes. The methodology adapts to the framework, accounting for how each technology packages code, handles local storage and talks to the backend.
Is the app's source code required?+
It is not mandatory. The assessment can work from the published binary or a test build, though access to source code can increase the depth of the analysis.
Does the test require a jailbroken or rooted device?+
Usually yes, to simulate compromised-device scenarios and analyze protections against reverse engineering and runtime manipulation.
Next step
About to publish or update an app that handles sensitive data?
Tell us the platform (iOS, Android or both), whether there are native libraries and what kind of data the app handles.