Defence-in-depth · security-first

Payment security solutions with defence-in-depth baked in.

PCI DSS Level 1 vault, network tokens, selective 3DS2, fraud-engine connectors, unified dispute defence and audit-grade logging — one integrated stack across every acceptance channel and every connected acquirer.

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PAN vaulted PCI L1 Tokens 3DS2 Fraud
Five layers around every credential.
PCI L1
vault + service-provider posture
Tokens
network tokens by default
3DS2
selective SCA orchestration
Fraud
engine-agnostic connectors
Audit
event log per authorisation

Key benefits

Five defences in one payment security system

Five layers of the stack that work in concert, not in isolation. Each one hardens the same authorisation path a different way.

  1. 01

    Vault the credentials before anyone else sees them

    Card data captures into topropay's PCI DSS Level 1 vault directly from the hosted checkout, embedded hosted-fields or SDK. Neither the merchant's servers nor the connected acquirers ever hold the PAN — vault tokens flow downstream in its place.

  2. 02

    Replace the PAN with network tokens

    Visa Token Service (VTS) and Mastercard MDES tokens replace the underlying credential in the vault. Recurring renewals, refunds and dispute defence run on the token; card re-issuance flows through scheme updaters without breaking billing.

  3. 03

    Authenticate selectively with EMV 3DS2

    EMV 3DS2 fires per PSD2 exemption logic and issuer behaviour. Trusted, low-risk flows pass through frictionless; high-risk authorisations step up to challenge. Visa Secure and Mastercard Identity Check share the same integration path.

  4. 04

    Score every authorisation for fraud risk

    Device fingerprinting, velocity rules, BIN / country checks, allow / block lists and partner fraud-engine connectors (Sift, Ravelin, Riskified, Kount) feed into the routing decision. Risky authorisations divert to review or step-up; nothing leaks through unchecked.

  5. 05

    Fight disputes with vault-backed evidence

    The unified dispute queue surfaces every chargeback across the acquiring panel. Evidence-pack templates per vertical prefill with authorisation, tokenised receipt, delivery metadata and 3DS response codes. Automated representment fires for select scheme reason codes.

How ecommerce payment security holds up in production

Six stages from card entry to signed event log

What happens between the buyer submitting card details and the merchant's audit log gaining a new entry — with every checkpoint inside the PCI perimeter.

  1. 01

    Buyer submits credentials

    Hosted checkout, hosted fields or SDK captures the credential; the merchant's origin never touches the PAN.

  2. 02

    Vault tokenises

    PAN captures into the PCI L1 vault; a vault token and (for card) VTS / MDES network token are issued.

  3. 03

    Risk & 3DS gate

    Velocity, device and BIN signals score the authorisation; 3DS2 fires selectively; risky authorisations divert to review.

  4. 04

    Route across acquirers

    The routing engine picks the highest-EV lane across the connected acquiring panel; soft declines cascade inside the same auth.

  5. 05

    Signed webhook fires

    Lifecycle events are signed, replay-safe and delivered to the merchant's webhook endpoint for real-time state.

  6. 06

    Audit-log entry

    Every attempt (successful or not) writes a signed event log with actor identity, IP, device, acquirer response code and timestamp.

Main use cases

Where mobile payment security solutions and ecommerce security overlap

Five merchant shapes that lean particularly hard on the security stack — from cross-border DTC through B2B receivables.

  • DTC

    Cross-border ecommerce payment security

    DTC brands running international traffic pair PCI L1 with selective 3DS2 and BIN-country risk scoring; approval stays high while CNP fraud exposure drops.

  • SaaS

    Recurring SaaS billing with vault tokens

    Network tokens plus scheme updaters keep recurring billing alive across re-issuance without the merchant handling PAN data.

  • Travel

    Travel and ticketing with delayed capture

    Auth-only at booking, capture at fulfilment, refund on cancellation — all against the same vault token, with dispute evidence sealed at each stage.

  • Plat

    Marketplaces with per-seller risk policy

    Different seller risk profiles get different routing policies and different 3DS thresholds; the platform enforces the boundary.

  • B2B

    B2B receivables with mandate posture

    SEPA SDD and ACH mandates captured and retained per scheme rules; refund controls require operator justification with a full audit trail.

Platform features

Capabilities behind the pci payment security stack

Twelve capabilities the platform ships once and reuses across every merchant.

  • PCI DSS Level 1 vault

    Annual on-site assessment, quarterly ASV scans, service-provider posture inherited by sub-merchants.

  • Vault tokenisation

    Vault tokens flow downstream in place of PAN; refunds, retries and recurring run on the token.

  • Network tokens (VTS / MDES)

    Scheme tokens replace static PAN; account updaters keep them alive across re-issuance.

  • Selective EMV 3DS2

    PSD2-compliant SCA orchestration — frictionless where allowed, challenge where required.

  • Device fingerprinting

    Client-side signals feed the routing decision; risky devices divert to step-up or review.

  • Velocity & list controls

    Per-BIN, per-country, per-IP velocity rules plus allow / block list management.

  • Fraud-engine connectors

    Partner-agnostic connectors for Sift, Ravelin, Riskified, Kount and others feed the same routing engine.

  • Unified dispute queue

    One queue across the acquiring panel; evidence-pack templates per vertical; automated representment for select reason codes.

  • Scheme-programme posture

    Position vs Visa VDMP / VAMP / VFMP and Mastercard ECP / EFMP surfaced per acquirer; routing rotates around at-risk lanes.

  • Sanctions & AML screening

    Sanctions screening on onboarding; AML monitoring tuned per merchant vertical and volume profile.

  • Signed webhooks

    Replay-safe signed webhooks so the merchant's system-of-record can trust the event stream.

  • Audit-grade event log

    Every payment attempt logged with actor identity (where authenticated), IP, device, acquirer response code and timestamp.

Industry relevance

Who maintain payment security compliance most easily on topropay

The security stack targets licensed merchants across Europe, the UK, APAC and LATAM. Grey and black-market verticals are declined at onboarding regardless of geography.

  • Cross-border DTC · ecommerce
  • SaaS · recurring billing
  • Travel & ticketing
  • Marketplaces · per-seller policy
  • B2B receivables · SEPA / ACH
  • Licensed gaming (where licensed)
  • Regulated financial services (where licensed)
  • Adult content · out of scope
  • Unlicensed gambling · out of scope

Trust & compliance

Compliance posture inherited by every merchant

One audited environment underpins the orchestration layer; sub-merchants inherit the posture across every acceptance channel and connected acquirer.

PCI DSS Level 1
Annual on-site assessment plus quarterly ASV scans; sub-merchants inherit the posture across every acceptance channel and connected acquirer.
SCA & PSD2
Selective EMV 3DS2 on the authorisation path keeps approval high across Europe without skipping the SCA bar.
PCI MPoC for SoftPOS
SoftPOS / Tap-to-Phone acceptance rides on partner apps that follow the PCI MPoC (Mobile Payments on COTS) programme.
NACHA / SEPA mandates
ACH and SEPA Direct Debit mandates captured and retained per scheme rules; mandate IDs travel with every debit.
Scheme programmes
Visa VDMP / VAMP / VFMP and Mastercard ECP / EFMP positions per acquirer surfaced in the dashboard.
Sanctions & AML alignment
Sanctions screening on onboarding; AML monitoring tuned to each merchant's vertical, geography and volume profile.

Ready to harden the payments path

Get every layer of the security stack from day one.

A 30-minute security review covers the PCI L1 posture your merchants inherit, the 3DS2 / SCA behaviour tuned to your market mix, fraud-engine connectors relevant to your traffic, and a sandbox you can test against before any commercial commitment.

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Frequently asked

Buyer questions about payment security solutions on topropay

Definitions, compliance obligations, mobile-side security, dispute mechanics, breach response and the practicalities of running defence-in-depth across a merchant panel.

  1. 01

    What do payment security solutions on topropay actually cover?

    Payment security solutions on topropay cover the full defence-in-depth stack — PCI DSS Level 1 vault, vault + network tokenisation, selective EMV 3DS2 for SCA, device fingerprinting and velocity controls, partner fraud-engine connectors, unified dispute queue and audit-grade event logging. Every layer applies across the acquiring panel and across acceptance channels.

  2. 02

    How does the platform handle ecommerce payment security specifically?

    Ecommerce payment security on topropay hinges on capturing card data into the PCI L1 vault directly from the hosted checkout, hosted fields or SDK so the merchant's origin never touches the PAN. Selective 3DS2 keeps approval high in Europe while satisfying SCA; velocity rules and fraud-engine connectors reduce CNP fraud exposure without hurting conversion.

  3. 03

    What payment security compliance obligations does the platform carry on the merchant's behalf?

    Payment security compliance obligations carried on the merchant's behalf include PCI DSS Level 1 service-provider posture (audit, ASV scans, control operation), SCA / PSD2 handling on European traffic, scheme-programme registration where required, and NACHA / SEPA mandate handling for bank-rail debits. Merchants who capture card data via topropay's hosted or embedded surfaces typically fall to SAQ A or SAQ A-EP scope.

  4. 04

    Are mobile payment security solutions supported?

    Mobile payment security solutions on topropay cover both native app payments (mobile SDK feeding the same PCI L1 vault) and SoftPOS / Tap-to-Phone via licensed partner acquirers whose SoftPOS apps follow the PCI MPoC programme. Wallet payments (Apple Pay, Google Pay, Click to Pay) ride tokenised handoff throughout — no PAN touches the merchant device.

  5. 05

    Where does pci payment security fit into the platform's overall posture?

    PCI payment security is the vault + tokenisation layer of the platform. The vault sits between the merchant's checkout surface and every connected acquirer; PANs are stored inside the PCI L1 environment and never leave it. Vault tokens flow downstream for refunds, retries, recurring and dispute defence.

  6. 06

    How do I maintain payment security compliance as my volume grows?

    Merchants maintain payment security compliance by staying on topropay's hosted or embedded checkout surfaces (which keep PCI scope at SAQ A or A-EP), rotating dashboard access credentials on schedule, wiring signed webhooks into their system-of-record, and periodically reviewing the audit-grade event log for anomalies. Scheme-programme position is surfaced automatically so at-risk metrics are visible before they cross programme thresholds.

  7. 07

    What does the payment security system look like on the operator side?

    The payment security system on the operator side is a dashboard covering routing policies, risk-rule editor, allow / block list management, dispute queue with evidence-pack templates, scheme-programme position per acquirer, and the audit-grade event log. Roles and permissions are per-user with a full audit trail.

  8. 08

    Do you support merchants in Thai casino payment security setups?

    No — topropay does not serve unlicensed gambling operators. Thai gambling is not a licensed vertical under current Thai regulation, so 'Thai casino payment security' as a merchant category is out of scope. Licensed gaming operators with the relevant operating licences in their jurisdictions of operation are supported; unlicensed operators are declined at onboarding regardless of geography.

  9. 09

    Is topropay a mobile payment security provider for app-based acceptance?

    Yes — topropay operates as a mobile payment security provider for native app acceptance and SoftPOS / Tap-to-Phone through licensed partner acquirers. The mobile SDK captures card data directly into the PCI L1 vault; SoftPOS acceptance rides partner apps under PCI MPoC. In both cases the underlying network-token infrastructure (VTS, MDES) and the same fraud / 3DS2 layer apply.

  10. 10

    How is dispute defence integrated with the security stack?

    Dispute defence pulls from the same vault, network tokens and event log that the acceptance flow already produced. Evidence-pack templates prefill with authorisation ID, tokenised receipt, 3DS response code, device metadata and delivery evidence. Automated representment fires for select scheme reason codes; manual defence is a dashboard flow with attachment support.

  11. 11

    What kind of audit trail does the platform produce?

    The audit trail produced by the platform includes every authorisation attempt, every state transition (auth, capture, refund, dispute, chargeback), every dashboard operator action (login, refund, rule change), and every automated event (rule fire, routing decision, cascade). Each entry carries actor identity where authenticated, IP address, timestamp, device fingerprint and correlation ID. Exportable for SOC / ISAE attestation.

  12. 12

    Does the platform support customer-side authentication beyond 3DS2?

    Beyond EMV 3DS2 / SCA on the card path, the platform's hosted-checkout surface supports device-side biometric confirmation (via wallets like Apple Pay and Google Pay) and OTP-based step-up where the partner acquirer offers it. Merchants can plug in their own risk signals via the webhook / API interface if they run a proprietary trust-scoring layer.

  13. 13

    How do you handle security for high-risk merchants?

    High-risk merchants (subscription, travel, ticketing, licensed gaming, nutraceuticals with the relevant licences) inherit the same PCI L1 posture as mainstream merchants but with more aggressive fraud-rule defaults, stricter velocity thresholds, and chargeback-aware routing that rotates around at-risk acquirer lanes. Underwriting screens out out-of-scope verticals at onboarding.

  14. 14

    What breach-response support does topropay offer?

    Breach response is a shared-responsibility model: the platform's PCI environment is monitored 24×7 with incident detection and response procedures inside the PCI DSS scope, and merchants who suspect a compromise on their own systems have a dedicated escalation channel that surfaces the tokenised activity ranges they need for their own investigation. topropay never asks a merchant to reveal PAN data for triage.

  15. 15

    How fast can a merchant get the full security stack turned on?

    The full security stack is on by default from day one. Vault, tokenisation, 3DS2 orchestration and audit logging apply to every merchant regardless of tier. Fraud-engine connector integrations, custom velocity rules and per-merchant routing policy tuning are configured in the dashboard, typically over a 1–2 week onboarding window.

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