The verdict in three sentences
3-D Secure 2 is the authentication layer that validates an international card via the issuing bank, and it cuts card fraud by 60-80 %. Above all, it triggers a liability shift: on a dispute over an authenticated transaction, the bank, not you, bears the loss. The trade-off is a friction step adding 3-8 % abandonment; the right setup triggers 3DS smartly, not systematically.
3DS1 vs 3DS2: what changes
3DS2 was designed to reduce the friction of legacy 3DS1. Comparison of the two versions (2026 orders of magnitude).
| Criterion | 3DS1 (legacy) | 3DS2 |
|---|---|---|
| User experience | Redirected, heavy page | Inline, bank app / biometrics |
| Data shared | Limited | 100+ risk signals |
| Frictionless authentication | No | Yes (frictionless flow) |
| Exemptions possible | No | Yes (low amount, low risk) |
| Success rate | 80 to 88 % | 92 to 97 % |
| Mobile compatibility | Poor | Native |
| Status | Sunsetting | 2026 standard |
The shift is clear: in 2026 you use 3DS2, which enables the frictionless flow for low-risk transactions — the customer sees no extra step — and only triggers the challenge (code, biometrics) on risky or high cases.
Tuning a low-friction flow
Goal: secure without killing conversion. Here are the levers and their impact, for a Senegalese store serving the diaspora.
| Lever | Security effect | Conversion effect | Recommended setting |
|---|---|---|---|
| 3DS on 100 % of cards | Maximal | -3 to -8 % | Reserve for B2B / large amounts |
| 3DS on 1st order only | High | -1 to -3 % | Good compromise |
| Low-amount exemption (< threshold) | Medium | Neutral | Enable under ~30,000 FCFA |
| Frictionless by default + challenge on risk | High | Near neutral | Recommended |
| Stripe card fee | — | — | 2.9 % + fixed fee (2026 order) |
The optimal setup combines frictionless by default, a forced challenge on the 1st order and an exemption below a small threshold. You keep the liability shift where it matters (large amounts, new customers) while letting loyal small-basket customers through without friction.
Mini case study
Mariam sells premium crafts online from Dakar, 60 % to the diaspora by card. Average basket 80,000 FCFA, 100 card orders/month, i.e. 8,000,000 FCFA. Without 3DS, she suffered 3 chargebacks/month at 80,000 FCFA, i.e. 240,000 FCFA monthly loss, borne by her.
By enabling 3DS2, card fraud drops ~70 % and the liability shift moves the loss on authenticated transactions to the bank: ~170,000 FCFA recovered per month. The friction step costs about 4 % abandonment, i.e. ~320,000 FCFA of revenue, but the frictionless setting brings that abandonment under 2 %. Clearly net positive.
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FAQ
Is 3DS mandatory in Senegal?
It is not imposed by local law, but the Visa/Mastercard schemes and processors like Stripe strongly recommend, or even require, it for international cards. Without it, you bear 100 % of fraudulent chargebacks.
How much does 3DS reduce card fraud?
The order of magnitude is -60 to -80 % on card fraud, plus the liability shift to the issuing bank on authenticated transactions.
Does 3DS lose sales?
Yes, the step adds 3-8 % abandonment in 3DS1, but 3DS2 with the frictionless flow brings that impact under 2 % for low-risk customers, who often see no extra step at all.
What is the difference between 3DS1 and 3DS2?
3DS1 redirects to a heavy page (80-88 % success); 3DS2 is embedded, mobile-native, supports biometrics and exemptions, with 92-97 % success. In 2026, 3DS1 is sunsetting.
How much does 3DS cost with Stripe?
3DS itself is included in Stripe processing; you pay standard card fees, on the order of 2.9 % plus a fixed fee per transaction in 2026. No extra cost for authentication.
Let's talk about your project. We configure 3DS2 with a frictionless flow to secure your diaspora cards without breaking conversion. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
