System review and analysis
Data flows and the boundaries of the cardholder data environment, architecture, code and configuration security, assessment readiness — before an assessor sees it.
Payment system development and review
We don't just find what needs fixing — we fix it.
Reviews, host integrations, IPS and AZQR, changes to meet PCI DSS and Central Bank requirements.
First consultation is free · NDA before any details
Test case
Interface
Checks
Status
0100 Authorization request
ISO 8583 · acquirer host
Field mapping, MAC
Passed
0200 Financial request
ISO 8583 · acquirer host
Amounts, response codes
Passed
0400 Reversal and advice
ISO 8583 · acquirer host
Matching, retries
Passed
0800 Network management
ISO 8583 · acquirer host
Echo, key exchange
Passed
pacs.008 Credit transfer
IPS · ISO 20022
Schema, status report
In progress
AZQR QR payment
National QR standard
Payload, confirmation
Queued
Illustration: what an integration test run looks like. Real results are shared after the NDA.
What we do
ISO 8583 host integrations
Host-to-host and terminal integrations: field mapping, reversals and advices, MAC, testing against the acquirer host.
IPS and AZQR
Connecting to the Central Bank's instant payment system over ISO 20022 and to the national QR standard.
Compliance-ready development
Enhancements and new components designed for PCI DSS and Central Bank requirements from day one: as few systems in scope as possible, tokenization, logging.
Independence
We do the work — an independent assessor verifies it
We prepare and remediate the system, but we don't assess our own work. The assessment is done by an independent QSA — or by you via SAQ, where your acquirer and the card schemes allow it.
That way you get one contractor for preparation and remediation — and an honest check of the result.
DNK
Preparation and remediation
QSA · SAQ
Independent assessment
How we work
- 01
Review
We examine the system and the requirements it has to meet.
- 02
Plan
Scope, timeline and a fixed price.
- 03
Remediation
Code, infrastructure, integrations, testing.
- 04
Handover
Documentation and knowledge transfer to your team.