A new foundational layer of the digital economy is emerging at the intersection of regulation, interoperability and trust

Digital identities are increasingly becoming a fundamental infrastructure of modern societies. What was long regarded primarily as a regulatory obligation within the context of KYC, anti-money laundering or fraud prevention processes is now taking on significantly greater strategic importance. Financial service providers, telecommunications providers, insurance companies, public authorities and platform operators now use digital identity verification as a central basis for accessing services, preventing fraud and building trust in digital processes.

At the same time, numerous countries are working on regulatory frameworks for digital identities. Current discussions show that the role of identity verification is undergoing a fundamental shift: it is increasingly understood as a reusable infrastructure upon which further digital services are built.

From compliance tool to trust platform

Traditionally, identity verification was primarily viewed as a necessary component of regulatory requirements. Companies had to verify their customers’ identities in order to meet legal requirements.

With advancing digitalisation, this perspective has changed. Today, identity solutions influence not only regulatory compliance but also user experience, security, fraud prevention and digital business models.

Digital identities are thus becoming a shared layer of trust that connects various applications. Whether opening a bank account, signing a mobile phone contract, using a digital signature or proving one’s age – almost every digital interaction now begins with some form of identity verification.

The requirements for digital identity infrastructures

For identity systems to function as infrastructure, they must fulfil certain characteristics.

Scalability is the top priority. Systems must be able to process millions of transactions reliably and in real time. This is no longer about individual checks, but about continuous digital processes.

Trustworthiness is equally important. Traceable verification procedures, certifications, auditability and clear governance structures are key prerequisites for acceptance by users, businesses and public authorities.

Interoperability, however, is particularly challenging. Digital identities only realise their full potential when they can be used across different applications, sectors and national borders.

Interoperability remains the biggest challenge

Although numerous technical standards and identity solutions exist, many systems remain isolated from one another.

A user whose identity has already been verified by a bank often has to go through the same process again with a telecoms provider, an insurance company or another financial services provider. Although the underlying identity data is identical, it is not automatically accepted or transferred.

The causes lie not solely in technical differences. Regulatory requirements, liability issues and differing risk assessments are equally relevant.

Even if an identity is deemed sufficiently verified in a specific context, it may be classified as not trustworthy enough for another use case or industry. This results in media breaks, additional costs and unnecessary repetition.

Reusable identities as the target

To address these challenges, the concept of reusable digital identity is gaining importance.

Under this approach, an identity is verified once according to defined standards and then stored in the form of digital credentials or verifiable credentials. Users can reuse these credentials later without having to repeat the entire verification process.

For businesses, this means lower costs and faster processes. For users, the number of recurring identity checks is significantly reduced.

However, this requires shared trust models, standardised security levels and broad recognition of the respective identity credentials.

Public and private identity systems are converging

Another trend is the increasing convergence of government and private-sector identity infrastructures.

In many countries, digital identity ecosystems are emerging in which public registers, official documents and private-sector verification services interact with one another. Digital driving licences, electronic proof of identity, age verification systems and certified identity services are examples of this development.

In the process, the boundaries between public and private actors are becoming increasingly blurred. Companies are undertaking identity checks that can later be used in official or regulatory contexts. At the same time, government programmes are drawing on technologies and infrastructures from private providers.

Risks of fragmented standards

The growing importance of digital identities highlights the consequences that a lack of standardisation can have.

Companies operating in multiple regulated sectors often have to meet different requirements simultaneously. A financial services provider, for example, may need to take into account requirements relating to anti-money laundering, fraud prevention, age verification and data protection – each with different definitions of trust levels and security requirements.

This fragmentation incurs additional integration costs, increases the complexity of processes and makes it difficult to scale digital services.

Furthermore, security risks arise. Different quality standards can lead to identities with low trust levels being used in higher-risk environments for which they were not originally intended.

Fragmentation also has tangible implications for users. Different procedures, document requirements and verification processes create friction in what are essentially interconnected digital usage scenarios.

Digital identity as a component of national infrastructure

With the increasing digitalisation of public administration, finance, telecommunications and online services, digital identity is increasingly viewed as critical infrastructure.

Much like payment systems, communication networks or cloud platforms, it forms the basis for numerous other digital processes. If this layer of trust fails or is not interoperable, there are far-reaching consequences for the economy and society.

Against this backdrop, issues relating to standardisation, certification, data protection and governance are becoming increasingly important.

Outlook

The debate surrounding digital identities has reached a turning point. The central question is no longer whether identity verification is a critical function of modern digital ecosystems. Rather, the focus is on how this infrastructure must be designed to ensure it remains scalable, interoperable and trustworthy in the long term.

Whilst companies are already increasingly relying on reusable identity models, digital credentials and cross-sector trust frameworks, regulatory authorities face the task of creating suitable framework conditions. The coming years will be decisive in determining whether digital identity actually becomes a universally usable infrastructure – or whether it remains fragmented into a multitude of separate systems and standards.