Mobile App Penetration Testing · York
Mobile App Penetration Testing in York
Mobile app penetration testing for York organisations, where the application runs on hardware the attacker controls. Anything enforced only in the app — a price check, a permission, a validation rule — can be observed, modified or removed entirely, so the useful question is what happens when the client is assumed hostile.
Why this comes up
The problem
Purchase validation happens in the app and the server accepts whatever the app submits.
What you get
What we deliver
- Server-side enforcement verified for every control the app appears to apply
- Traffic inspected, including whether certificate pinning can be circumvented
- Local storage examined for credentials, tokens and data held unnecessarily
- Binary reviewed for hardcoded secrets, which are recoverable however obfuscated
- Platform protections assessed, including behaviour on rooted or jailbroken devices
- Backend tested alongside the app, since that is where the real controls must live
Want this scoped for your business in York?
Thirty minutes, no charge, no sales script. You leave with a written summary of what mobile app penetration testing would actually involve — whether or not you use us.
Working in York
Yorkshire & the Humber
York's economy leans heavily on heritage tourism, and the practical constraint here is often that a visitor-facing system has to handle enormous seasonal swings on a small operator's budget.
Visitor-facing booking and ticketing systems that handle extreme seasonality on a small operator's budget.
Sectors we work with in York
- Tourism & Heritage
- Rail Engineering
- Bioscience
- Retail
- Higher Education
What we work with
Technologies and platforms
- Frida
- Burp Suite
- MobSF
- iOS and Android
Who we work with
Industries we serve
- Financial services
- Retail
- Healthcare
- Mobile app businesses
- Transport
Why us
Why York businesses choose Asionis
- Projects typically launched within 4–8 weeks
- No long-term contracts required
- All team members UK-based
- Dedicated account manager and development team
- Transparent reporting with monthly performance metrics
- Scalable from startup to enterprise
How we work
- Step 1
Free consultation
A 30-minute call to understand the problem. You keep the written summary either way.
- Step 2
Proposal
Scope, timeline and a fixed price, in writing, before anything starts.
- Step 3
Build
Short cycles with regular check-ins, so you see progress rather than hear about it.
- Step 4
Launch and support
We handle the go-live and stay available afterwards.
Mobile App Penetration Testing in York — common questions
- Why treat the client as hostile?
- Because it is physically in somebody else's hands. The application can be decompiled, instrumented and modified, so every check within it is advisory — the only controls that hold are the ones the server enforces independently of what the app says.
- Are hardcoded secrets really recoverable?
- Essentially always. Obfuscation raises the effort and does not prevent extraction, so an API key or credential compiled into the application should be treated as public — which means the backend must be designed on the assumption that it is.
- Does certificate pinning help?
- It raises the difficulty and does not stop a determined tester. Pinning is worth implementing to deter casual interception, and it should not be relied upon as a security boundary — it can be bypassed on a device the attacker controls.
- Should the backend be in scope?
- It usually should, because that is where exploitation happens. Testing the app in isolation identifies client weaknesses; testing it against the API establishes whether those weaknesses lead anywhere, which is the question that actually matters.
- Do you work with businesses across North Yorkshire?
- Yes. We are based in Leicester, United Kingdom and work with clients throughout Yorkshire & the Humber, including York and the surrounding North Yorkshire area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
- What kind of York businesses do you usually work with?
- Visitor-facing booking and ticketing systems that handle extreme seasonality on a small operator's budget. Beyond that we work across Tourism & Heritage, Rail Engineering, Bioscience, Retail and Higher Education.
- Do you cover the areas around York?
- Yes — we work throughout Yorkshire & the Humber, including Leeds, Newcastle, Sheffield. York is an urban area of roughly 210,000+, and we take on work across the wider North Yorkshire region rather than the city boundary alone.
Talk to us about Mobile App Penetration Testing in York
A 30-minute call with someone who would actually work on it. No sales script, no obligation.
- Projects typically launched within 4–8 weeks
- No long-term contracts required
- All team members UK-based
- Dedicated account manager and development team
- Transparent reporting with monthly performance metrics
- Scalable from startup to enterprise