Tokenisation can solve a big problem… e-commerce fraud is a growing threat that continues to impact online businesses worldwide. According to recent figures from Statista (2025), global e-commerce losses due to online payment fraud are projected to exceed $100 billion by 2029. As fraudsters increasingly exploit IT vulnerabilities, it is imperative for online and brick-and-mortar businesses to fortify their cybersecurity posture.

Amidst the current security challenges, payment tokenisation emerges as a technology to future-proof business operations and is projected to reach USD 28.97 billion worth by 2033.

This guide explores the concept of payment tokenisation, emphasising its value and role in ensuring credit card payment processing standards for merchants.

What is Payment Tokenisation?

Tokenisation is the process of substituting sensitive data with non-sensitive values – tokens. It works as a key layer of protection for stored data by replacing card numbers with illegible, surrogate values.

During a transaction, payment details are securely transmitted to a trusted payment provider via hosted payment page or through direct API integration.

In the hosted payment page flow, the customer is redirected to a secure payment page operated by the payment provider. Here they can enter their payment information. The provider handles data collection, encryption, and transaction authorisation, keeping sensitive information off the merchant’s servers.

In the API integration flow, the merchant’s website collects payment details using secure client-side tools. In this case, the merchant is responsible for ensuring full PCI DSS compliance, as sensitive data passes through their systems.

Following a transaction, sensitive card data is substituted by a special character sequence. The translation of characters into randomised values refers to the tokenisation process.

For merchants who are not PCI DSS compliant, storing sensitive information on their side is not allowed. In these cases, the third-party payment provider retains the sensitive data and the tokens for future use, while merchants don’t retain any sensitive information.

This method is one of the key cybersecurity best practices to ensure payment providers remain compliant with PCI DSS and is also crucial for merchants using API integration to store sensitive data.

Different Types of Tokens

There are different types of tokens available to merchants, offering different levels of complexity and security. Simple tokens refer to randomised reference numbers that are unidentifiable and unrelated to customer data. They provide a high level of security when implemented correctly by a reputable payment provider.

On the other hand, token vaults represent a more complex system of payment security and data handling. Essentially, token vaults are encrypted repositories of original payment data associated with tokens from each customer transaction. Depending on the type of payment gateway integration, either the merchant or the payment provider may retrieve the payment information as needed. Token vaults can also be deployed in cloud environments, mitigating the need for extensive infrastructure.

The Value of Tokens

In an era where cybersecurity is paramount, failing to secure customer data can come at significant costs. Recently, the IT systems of the UK’s most prominent retailers suffered significant downtime following a series of cyberattacks. They were prevented from serving their customers as a result. As the consequences of these attacks continue to linger, affected UK retailers are working overtime to get back on track. In these situations, the use of tokenisation payment security has partly helped prevent what could have been a catastrophic breach. Reducing the risk of a lateral exploitation of customer data. In fact, using payment tokens, retailers avoid the need to encrypt and retain sensitive payment details. This lowers the risk of attacks, breaches, and noncompliance with ever-changing payment processing and data security policies.

Tokenisation also enables seamless customer experiences, addressing a crucial customer demand – convenience. In fact, with tokenisation enabling one-click checkouts, customers avoid re-entering card details and access a seamless shopping experience, meeting an important need for comfort and familiarity for consumers.

Finally, from a regulatory perspective, compliance with PCI DSS is mandatory for payment providers and merchants specifically using API integration within payment gateways to store sensitive information. In this regulatory context, tokenisation becomes a straightforward strategy to meet fundamental data handling legal requirements. In an era of rising cyber threats and increasing customer expectations, tokenisation offers merchants a scalable, effective, and future-ready approach to safeguarding sensitive data, building trust, and preserving business integrity.