
Privacy by Design in Identity Verification
How to confirm a person is real while keeping sensitive biometric material off your servers.
4 min · October 2026
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What businesses need to know about compliance when verifying identities across markets.

Identity checks often sit inside regulated flows: account onboarding, age gates, payments and financial services. In these flows the check is not only a fraud control. It is also evidence that the business met an obligation, and that evidence may need to hold up months or years later in an audit or a regulator's review.
Requirements vary by market. The same product can face different rules in Zurich, Berlin and Lisbon, and a different set again depending on whether it holds a financial licence, sells age restricted goods or simply wants to keep fake accounts out. Compliance work starts with knowing which of these situations applies to you.
This article gives a general overview. It is not legal advice, and the details of your obligations depend on your licence, your sector and the markets you serve. Confirm them with your legal or compliance team.
Most identity obligations in regulated sectors come from anti-money laundering rules. The usual label is KYC, and the underlying process is customer due diligence. In broad terms it asks a business to:
The depth of each step is meant to scale with risk. A low value account might need simplified checks, while a high risk customer or jurisdiction calls for enhanced due diligence. That risk-based approach is what lets a business run lighter flows where they are justified and stronger ones where they are needed. The AML framework sets the outcome; how you design the flow is largely up to you.
Two sets of rules matter most for identity verification in Switzerland.
The revised Federal Act on Data Protection (nFADP) has been in force since 1 September 2023. It brought Swiss law closer to the GDPR in structure, with principles such as purpose limitation, proportionality, privacy by design and privacy by default. Biometric data that uniquely identifies a person is treated as sensitive personal data, which raises the bar for how it is processed, explained to users and protected. A face match used to confirm a document holder falls into this category.
Anti-money laundering rules apply to financial intermediaries, such as banks, payment providers, asset managers and many crypto businesses. These rules, together with guidance from the supervisor and self-regulatory organisations, set out how customers must be identified, including requirements for remote onboarding. Which exact rules apply depends on the licence and how the business is supervised. Our Switzerland coverage page lists the documents supported for the Swiss market.
In the EU, the GDPR governs personal data processing. Biometric data used to uniquely identify a person is a special category of data, so a business needs both a lawful basis and an applicable condition for processing it, plus the usual transparency, security and data subject rights.
On the anti-money laundering side, the EU adopted a package that replaces much of the old directive-based approach with a directly applicable regulation, the AMLR, applying from July 2027. A single rulebook should reduce the differences between member states, but businesses will need to review their customer due diligence procedures against it before that date.
eIDAS 2.0 introduces the European Digital Identity Wallet, which member states are required to offer to citizens. Over time, wallets may become an accepted way for people to share verified attributes, such as proof of age or identity, without handing over a full document image. It is worth designing your flow so a new evidence source can be added later without rebuilding everything.
Data residency, retention, and what you store after a check all change with jurisdiction. Plan the stack before you scale.
Three questions come up in almost every cross-border rollout:
Two obligations pull in opposite directions. Anti-money laundering rules often require you to keep identification records for a defined period after the relationship ends. Data protection rules require you to keep nothing longer than necessary.
The practical answer is to separate what you keep from what you discard:
| Data | Typical handling |
|---|---|
| Verification result, method, timestamp | Kept as evidence for the required period |
| Extracted document data | Kept where the AML rules require it |
| Document images and selfie | Kept only if required, otherwise deleted after the check |
| Raw biometric templates | Deleted once the match is complete, unless a specific duty applies |
Whatever you keep, make it reconstructable. An auditor should be able to see which checks ran, which version of the flow was used, what the outcome was and who reviewed any manual case.
Pick controls that match your risk and obligations. Verification should support compliance without becoming the product's bottleneck.
A short checklist before launch:
secuveri is built for this kind of setup. Data is processed and stored in Switzerland, on-premise deployment is available, and you choose which checks run in each flow. If you want to talk through a specific market, book a call.
This article is general information, not legal or compliance advice. Your obligations depend on your sector, licence and markets.
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How to confirm a person is real while keeping sensitive biometric material off your servers.
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