Sikkerhed

3DS-optimering

Cardflos 3DS-optimering forbedrer transaktionssikkerheden og godkendelsesraterne uden at kompromittere kundeoplevelsen. Vi anvender intelligent 3D Secure-protokoller, der balancerer godkendelseskrav med konverteringsmål.

Vores system tilpasser sig udstederkrav og forhandlerrisikoprofiler for optimal ydeevne.

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Overblikket

3DS optimisation refers to the strategic management of 3-D Secure protocols to balance payment security with transaction throughput. While Strong Customer Authentication (SCA) is a regulatory requirement under PSD2 for European Economic Area transactions, its application elsewhere remains variable.

Merchants must navigate different versions of the protocol, primarily 3DS2, to utilise data-rich exchanges that facilitate frictionless authentication. This process sits between the gateway and the card schemes, acting as a verification layer before the authorisation request reaches the issuer.

Effective optimisation involves analysing issuer behaviour and risk signals to determine when a challenge is necessary. If mismanaged, 3DS can introduce latency or unnecessary friction, leading to basket abandonment.

By refining when and how these protocols are triggered, businesses may improve their authorisation rates while maintaining a robust defence against fraudulent activity and shifting the liability for chargebacks to the card issuer.

Sådan fungerer det

  1. Data gathering and risk analysis

    The system collects transaction metadata including the BIN, MCC, and device fingerprints. These variables are analysed against historical issuer performance to determine the likelihood of a frictionless flow.

    This initial stage ensures that the subsequent 3DS request contains sufficient data to satisfy the issuer's risk engine without requiring manual input.

  2. Protocol version selection

    The gateway identifies whether the issuer supports 3DS 2. 1, 2.

    2, or legacy versions. It prioritises the latest available version to enable biometric authentication and app-to-app redirection.

    This reduces the reliance on traditional SMS one-time passwords, which are known to have higher failure rates in mobile commerce environments.

  3. Exemption management and application

    Transaction Risk Analysis (TRA) or Low Value Payment (LVP) exemptions are applied where applicable under PSD2 frameworks. The system evaluates if the transaction meets the criteria to bypass a challenge entirely.

    This technical request is sent to the acquirer, who then communicates the exemption preference to the issuer.

  4. Dynamic challenge handling

    If the issuer requests a challenge, the platform manages the user interface transition to ensure the authentication frame loads correctly. It monitors for timeouts or refusal codes during this phase.

    If a technical failure occurs, the system can attempt a fallback or log the specific refusal reason for analysis.

Hvorfor det betyder noget

Reduction in checkout friction

Excessive authentication requests often lead to customer drop-off at the final stage of the purchase. By intelligently applying exemptions and favouring frictionless flows, merchants can minimise the number of steps a customer must take.

This is particularly relevant for repeat transactions where a Merchant Initiated Transaction (MIT) or a trusted beneficiary status may be applicable under current regulations.

Liability shift and fraud protection

Correctly implemented 3DS protocol usage typically shifts the financial liability for fraud-related chargebacks from the merchant to the issuer. Even when a frictionless flow is granted, the merchant generally remains protected.

This mechanism is a critical component of risk management for high-growth businesses operating in sectors with historically higher dispute rates or lower margins.

Authorisation rate improvement

Issuers are increasingly likely to decline transactions that do not have associated 3DS data, citing security concerns or regulatory non-compliance. Optimisation ensures that the issuer receives the specific data points they require to approve the transaction.

By aligning with issuer preferences, merchants can reduce the frequency of soft declines and improve the overall success rate of their payment processing.

Anvendelser

Subscription and recurring billing

Managing the initial setup of a recurring payment using 3DS to establish a secure mandate. Subsequent cycles are processed as Merchant Initiated Transactions, avoiding further challenges while maintaining compliance with relevant payment services directives.

High-value electronic goods

Applying mandatory 3DS challenges for transactions above a specific currency threshold or risk score. This ensures that expensive orders are fully authenticated, protecting the merchant from significant financial loss due to friendly fraud or stolen credentials.

Cross-border e-commerce

Adjusting 3DS strategies based on the geographic location of the issuer. For example, applying strict SCA protocols for EEA-based cards while using a more relaxed, conversion-orientated approach for regions where 3DS adoption is not a regulatory mandate.

Mobile application payments

Utilising 3DS2 to enable native biometric authentication such as FaceID or fingerprint scanning. This creates a smoother user experience compared to browser-based redirects, which often perform poorly on mobile devices and lead to session timeouts.

I tal

70–80%
Frictionless Authentication Rate

This is a typical range observed for merchants using advanced data sharing and exemption strategies within regulated markets, although individual results vary by sector.

2–5%
Authorisation Uplift

Industry benchmarks suggest this range of improvement in approval rates when moving from legacy 3DS1 to optimised 3DS2 protocols due to better issuer data.

<2s
Authentication Latency

Modern 3DS server responses are typically expected within this timeframe to ensure the user experience remains stable during the transition between the merchant site and the issuer.

Ready to route with 3DS-optimering?

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Hvad du får med 3DS-optimering

  • Intelligent anvendelse af 3D Secure for reduceret friktion.
  • Dynamisk 3DS-regelkonfiguration baseret på transaktionsrisiko.
  • Optimering af 3DS-versionering (f.eks. 3DS2) for udstederunderstøttelse.
  • Problemfri integration med flere 3DS-udbydere.
  • Forbedrede godkendelsesrater gennem strategisk 3DS-udfordringsstyring.
  • Detaljeret rapportering om 3DS-ydeevne og opgivelsesrater.
  • Manage the liability shift for fraud-related disputes according to card scheme rules.
  • Support app-to-app redirection for modern mobile banking authentication workflows.
  • Configure custom rules for challenge triggers based on MCC or transaction value.
  • Integrate with multiple 3DS Server providers to ensure high availability and redundancy.
See 3DS-optimering on your acquiring stack.

A short scoping call, then a written plan for your MIDs.

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Spørgsmål om 3DS-optimering

Hvad er 3DS-optimering?

3DS-optimering involverer strategisk anvendelse af 3D Secure-godkendelse til betalingstransaktioner. Målet er at reducere svindel, samtidig med at kundefriktionen minimeres og godkendelsesraterne forbedres ved intelligent at beslutte, hvornår og hvordan en transaktion skal udfordres.

Hvordan påvirker 3DS-optimering konverteringsraterne?

Ved at bruge 3DS selektivt og intelligent hjælper Cardflo med at reducere unødvendige udfordringer. Dette minimerer opgivelse under betalingsprocessen, hvilket fører til forbedrede konverteringsrater, samtidig med at der opretholdes stærk sikkerhed for transaktioner.

Er 3DS-optimering kompatibel med alle betalingsmetoder?

Cardflos 3DS-optimering gælder primært for kortbetalinger, der understøtter 3D Secure-protokoller, såsom Mastercard, Visa og American Express. Vores system er designet til at integrere med forskellige kortordninger for omfattende dækning.

What happens if an issuer does not support the latest version of 3DS?

The optimisation logic should include a fallback mechanism. If an issuer does not support 3DS2, the system should ideally attempt to use 3DS1 or proceed without authentication if the risk profile allows and regulations permit.

However, 3DS1 is being phased out by major card schemes like Visa and Mastercard. If no version is supported, the transaction may be processed as a non-3DS payment, though this carries higher risk and may be rejected by the issuer's security systems.

How do SCA exemptions work within the context of 3DS optimisation?

Under PSD2, certain transactions may be exempt from Strong Customer Authentication. Common exemptions include low-value payments (under €30), recurring transactions after the initial setup, and payments to trusted beneficiaries.

A merchant can request these exemptions via their PSP or gateway. The issuer, however, has the final decision on whether to accept the exemption or demand a challenge.

Optimisation involves correctly flagging these requests to increase the probability that the issuer will allow the transaction to proceed without a challenge.

Does 3DS2 work equally well on all mobile devices and browsers?

While 3DS2 is designed to be mobile-compatible, performance can vary based on the implementation and the cardholder's banking app. Technical issues like iframe blocking, cookie restrictions in modern browsers, or poor app-to-app redirection can cause failures.

3DS optimisation includes monitoring these technical signals and adjusting the implementation to ensure the authentication interface renders correctly across the widest possible range of hardware and software configurations.

How is the success of a 3DS optimisation strategy measured?

Success is primarily measured by the authentication success rate, the frictionless flow rate, and the subsequent authorisation rate. Merchants should also monitor the '3DS abandonment rate', which tracks customers who reach the authentication stage but do not complete it.

A successful strategy will show a high percentage of frictionless approvals and a low rate of abandonment, indicating that security measures are not significantly hindering the customer journey.

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