For Southend's booking, payments and agency-built platforms. One fixed price, retest included.
Tell us about your app. We reply within 1 business day with a fixed quote. No call needed.
Southend-on-Sea became a city in 2022, but its economy has long mixed seaside tourism with office-based work. The seafront, the pier and a busy events calendar support ticketing, booking and hospitality platforms. The town has a history of card and financial services operations, a small airport with its own business park, and a growing number of digital agencies and creative studios serving clients in Essex and London.
Southend's software often takes card payments from the public, sometimes in short seasonal peaks. That draws attention from payment providers, insurers and the larger London clients many local agencies work for. Each of them asks the same thing: has an independent, accredited tester checked this application recently?
Booking engines for attractions, events, restaurants and short stays take card payments and hold customer details. Seasonal traffic spikes attract fraud, and payment providers expect merchants to keep their online checkout secure.
What we focus onBooking and ticket allocation logic, voucher and discount codes, payment confirmation callbacks, race conditions on limited inventory, and admin panels used by venue staff on shared devices.
Firms handling card servicing, collections or payment processing run portals for customers and staff. Their banking partners and card schemes require regular penetration testing of systems that touch payment data.
What we focus onPayment amount and status integrity, card data exposure in responses and logs, customer identity checks before account changes, and separation between agent, supervisor and customer functions.
Agencies build web apps, campaign microsites and member areas for clients in Essex and London. Corporate clients now write security testing into their statements of work and expect a report at handover.
What we focus onFramework and plugin exposure, authentication on client admin areas, secrets left in repositories or front-end bundles, hosting misconfiguration, and access left behind for former agency staff.
Booking, payment and agency-built applications in Southend tend to break in business logic rather than in exotic exploits.
Sending the same voucher redemption several times in parallel can apply it more than once before the system marks it used. Gift cards and promotional codes are drained, often during peak season when nobody is watching.
If the booking system trusts a redirect or callback saying payment succeeded without checking the amount with the provider, a user can confirm a booking for a fraction of the price.
Race conditions in seat or slot allocation let concurrent requests book the same capacity. Beyond lost revenue, it leaves staff dealing with angry customers on the day of an event.
Agency-built admin areas often keep shared or personal accounts for developers who have left. Without central control, those logins remain a quiet route into client systems for years.
What UK pricing guides put a SaaS app with an API and several user roles at.
Sources: Stingrai Penetration Testing Price Index (Sept 2026, median of 30 G-Cloud 14 rate cards) and Cyphere’s UK cost guide (2026).
Per application · any size
£2,400flat
One application = one web product your users sign in to, plus its API. Mobile apps, internal networks and cloud reviews are scoped separately. Prices exclude VAT.
9 gates, the same sequence on every engagement.
Discovery
We send a short questionnaire to understand your infrastructure, business requirements and security concerns.
Agreement
We analyse your answers, define a clear scope and issue the Statement of Work.
Initiation
We walk through methodology, timeline and requirements, and access is handed over securely.
Active testing
AI-enabled coverage, then accredited engineers validate and exploit. High and critical findings are sent to you immediately.
Reporting
Every finding with risk rating, technical detail and step-by-step remediation, mapped to your controls.
Walkthrough
A session with your technical team to explain findings, priorities and remediation approaches.
Remediation
Your teams implement fixes. We stay available for guidance throughout.
Verification
We re-test every previously identified issue to confirm the fix and check nothing new was introduced.
Attestation
A final report confirming remediation and your improved security posture, ready to share with auditors.
Merchants and service providers must test the systems around card payments. A CREST pentest of your booking or payment application supports requirement 11.4 and gives your acquirer evidence.
Insurers increasingly ask whether customer-facing systems have been tested. A recent report with retest results helps answer proposal questions accurately and can support a cleaner renewal.
Corporate clients often write security testing into agency contracts. Delivering a CREST report at launch meets that clause and gives the client something their own security team can review.
A hosted payment page reduces your scope, but the page that redirects to it, the booking logic and the payment confirmation handling are still yours. Those are common places for fraud. We test them, and your QSA or acquirer decides exactly which PCI requirements apply to you.
Yes, if you book a few weeks ahead. Testing takes place in an agreed window and the report follows in 4 to 7 working days. That leaves time to fix issues and use the included retest before traffic peaks, rather than changing code in the middle of the season.
The live booking journey, the payment hand-off, the admin area and any custom code or APIs around the plugin. We also check the plugin and theme versions for known vulnerabilities. We do not audit the plugin vendor's source code, but we report anything in it that puts your site at risk.
No. CyberFortify has no Southend-on-Sea office. Web application and API tests run remotely, which is how almost all application pentests are delivered. Kick-off, critical alerts and the report walkthrough happen in UK working hours, and the price is the same £2,400 flat.
Our AI Pentest Agent covers the breadth of your app: mapping every page and API route and checking the known issues. That frees our CREST-accredited engineers for exploitation, access control and business logic. Fewer billable days means one flat fee instead of a day rate. Every finding is still validated by a person before it reaches your report.
Yes. CyberFortify is a CREST member company, accredited for Penetration Testing and AI-Enabled Penetration Testing, and a signatory of the CREST AI Charter. You can check our listing on the CREST Marketplace before you book.
One web product your users sign in to, plus the API behind it. Size doesn’t change the price: a large SaaS platform with many roles is still £2,400. A mobile app, an internal network or a cloud configuration review is a separate scope, and we’ll quote it on the call if you need it.
Yes. £2,400 per application, agreed on the scoping call before testing starts. The retest of your fixes is included. There are no day rates, so the invoice doesn’t grow if testing takes longer.
No. Cyber Essentials Plus is a certification with a hands-on check of five basic controls. It doesn’t test your application for vulnerabilities the way a penetration test does.
No. CHECK is the NCSC scheme for UK government and critical national infrastructure systems. If your contract names CHECK, you need a CHECK company, and we’ll tell you so on the call. CyberFortify is CREST accredited.
Testing usually starts within a week of the scoping call, and most reports are ready in four to seven working days. Criticals are flagged within 24 hours of discovery.
CyberFortify works under ISO 27001 certified processes. Client data from the engagement is disposed of afterwards, as set out in the statement of work. Every assignment carries professional liability insurance and Koop cyber insurance.
Already have your scope written up? Send full scope details
Your first call is with Usama Gul, the founder and the engineer who leads your test. You’ll leave with a confirmed scope and a start date.
Prices exclude VAT. Price comparisons use published UK guides; individual firms’ quotes vary.
