Payment Terminal Security
Payment terminal and POS security testing, covering firmware, communications, tamper resistance, and end-to-end transaction integrity.
Payment terminals, countertop POS, mobile POS, and unattended terminals, sit on a critical security boundary: the device handles cardholder data, payment credentials, and PIN entry in environments where physical access is uncontrolled. Their security model is governed by PCI PTS for hardware and by tight operational and cryptographic requirements for everything above it.
Engagements typically cover firmware analysis, hardware tamper resistance, secure-element and cryptographic-key handling, communications (Bluetooth, Wi-Fi, cellular), and the payment flow end-to-end through to the acquirer. Output supports vendor security review, acquirer onboarding, and PCI compliance evidence.
What's at stake.
Payment terminals carry asymmetric impact
A compromised terminal can skim cards, capture PINs, or alter transactions, with consequences for cardholders, merchants, and acquirers simultaneously.
A structured, intelligence-led path through every engagement.
Every engagement follows the same disciplined path through the Velocity platform, so quality, traceability, and reporting are consistent across teams.
Scoping
Define assets, environments, Rules of Engagement, and acceptance criteria with the technical and security stakeholders.
Execution
Manual and tool-assisted testing by CREST-accredited consultants, with evidence captured at each step.
Validation
Every finding is reproduced, risk-rated under CVSS, and confirmed by a second consultant before reporting.
Reporting
Cryptographically signed reports with test-case traceability, severity ratings, reproduction steps, and remediation guidance.
Debrief & Retest
Stakeholder walk-through of findings, prioritisation support, and a retest cycle on remediated issues.
Mapped to recognised baselines.
Test Your Defences Against Adversarial Expertise
Talk to a CREST-accredited consultant about your next penetration testing engagement.