Essential guide to payment tokenization: benefits and best practices

Tokenization is a key enabler of secure online and digital wallet transactions. It allows for faster, safer payments, and reduces fraud.

As a result, tokenization helps decrease abandoned cart rates, enhancing the overall purchasing experience for customers.

The global tokenization market was valued at USD 2.81 billion in 2023 and is expected to grow to USD 3.32 billion in 2024, ultimately reaching USD 13.20 billion by 2032. This growth represents a compound annual growth rate (CAGR) of 18.8%.

In 2023, North America led the market with a share of 37.01%.

So what is payment tokenization? This article will cover how payment tokenization works, the advantages to businesses and customers.

What is payment tokenization?

Payment tokenization secures transactions by replacing sensitive data, like credit card numbers, with a unique “token” that holds no actual payment information.

This way, if intercepted during a payment transaction, the token is useless to fraudsters. By using tokens instead of real card details, businesses enhance payment security, lower fraud risks, and ensure a seamless experience for customers.

What is credit card tokenization?

Credit card tokenization replaces the card’s PAN (Primary Account Number) with a unique, unrelated sequence, or "token." This process is a specific form of payment tokenization, also used for debit cards and digital wallets to enhance security.

How does payment tokenization work?

During an online transaction with a credit or debit card or digital wallet, an algorithm generates a unique token to replace the customer’s PAN.

This token acts as a secure identifier, eliminating the need to transmit the actual PAN, which enhances security and protects cardholder data in case of a breach.

Payment service providers ensure that tokens are securely generated and mapped to the original data during transactions.

Because each token is randomly generated and unique to a customer’s card at a specific merchant, predicting or exploiting tokens becomes much harder for fraudsters.

A token alone cannot reveal the original card details, keeping payment information safe.

Here’s how payment tokenization works:

1. Data: When a customer initiates a transaction, they provide payment details, like a debit or credit card number.
2. Tokenization Request: The business sends this data to a payment processor or third-party vendor.
3. Token Generator: The service creates a unique token, a random string representing the original data. It has no value outside the specific payment system.
4. Token Stored in System: The business keeps this token in their system, while the original payment data is securely stored in the tokenization service’s vault.
5. Usage: For processing, the token is sent to the payment processor or third-party vendor, which maps it to the original data to complete the transaction without exposing sensitive details.
6. Reusability: For recurring payments, the same token is reusable, maintaining security and streamlining future transactions.

Different types of tokenization

Network tokens

Network tokenization secures cardholder data by replacing PANs with tokens, which are updated in real-time to reduce payment friction and boost acceptance rates.

Managed by card schemes like Visa and Mastercard, this type of tokenization enhances security while supporting seamless transactions within a merchant’s ecosystem.

Nuvei supports network tokenization by securely collecting and storing Visa and Mastercard tokens, enabling safe transactions without transmitting sensitive card data. This ensures enhanced security and data protection.

Card-on-file tokens are merchant-specific, but they can be used across various payment gateways, provided they remain within the same merchant's system.

Generally confined to e-commerce, these tokens further reduce fraud risks by limiting use to secure, designated channels.

Acquirer tokens

Acquirer tokens are created by acquirers when processing cardholder transactions for merchants. These tokens are returned to merchants in the transaction response and are exclusive to the acquirer, meaning only the acquirer can generate, own, and use them.

Payment tokens

Payment tokens are a newer form of issuer tokens created within a token program framework, typically on behalf of at least one card issuer.

Both merchants and cardholders can request these tokens for specific purposes, ensuring secure cardholder data during transactions.

For instance, a cardholder might request a device-specific token when initiating a transaction through a mobile application.

Merchant tokens

Merchant tokens are created specifically for a merchant by a provider of their choice. These tokens are generated after a cardholder presents their card for transaction processing.

Issuer tokens

Issuer tokens are generated by card issuers for specific applications such as Google Pay, Apple Pay and Samsung Pay. These tokens are typically provided to the cardholder’s mobile app, card chip, or wallet application. Since issuer tokens belong to the issuer rather than the merchant, they may be less effective for enhancing customer journeys within a merchant's ecosystem.

Where can tokens be used?

Online and In-App Payments

You can also use your digital wallet for in-app or website payments. The wallet provides token details and cryptograms, streamlining the checkout process, including automatic shipping information. This process significantly reduces the risk of credit card fraud by ensuring that sensitive card information is never exposed during online transactions.

In-Store with Mobile Devices

With digital wallets like Apple Pay, Samsung Pay, or Google Pay, you can make secure contactless payments at checkout. These wallets use tap-and-go technology, similar to contactless cards, and allow for higher-value purchases by requiring authentication on your device before tapping.

Guest Checkout Options

If you’re not a frequent customer, your card details can be tokenized at guest checkout using digital wallets like Click to Pay. This process allows for purchases without needing to enter card details or redirecting to complete the transaction.

Tokenized Purchases Online

For merchants where you’ve saved your card details, like e-commerce platforms or subscription services, your card on file is replaced with a token. The merchant contacts Mastercard for a cryptogram for each transaction, ensuring secure purchases.

Types of businesses that need to use tokenization

Tokenization provides significant benefits for businesses managing sensitive payment data, including:

SaaS companies (subscription as a service)

Companies with recurring billing can securely handle customer payment data for ongoing transactions through tokenization.

E-commerce businesses

It protects customer payment information, reducing the risk of breaches and fraud in online transactions.

Physical stores

While more prevalent in online settings, tokenization enhances security for physical stores using point-of-sale (POS) systems or mobile payment solutions.

Platforms and marketplaces

Tokenization improves security and simplifies the management of sensitive payment data in complex transactions, fostering trust and scalability for platform businesses.

Are tokens really safe?

The security of a token hinges on its complexity and the challenge of deducing the original information it replaces.

It is statistically improbable to determine the original value of a token, as the data it substitutes is stored in a PCI-compliant token vault.

This means that in the event of a data breach, hackers would only access tokens, which are ineffective for fraudulent use.

Even if a hacker located the token vault, they would face significant barriers to entry.

Token vaults employ advanced security measures, making it difficult to bypass them through simple means, such as guessing passwords or social engineering.

Payments tokenization is so robust that the PCI Security Standards Council (PCI SSC) specifically mandates it for protecting payment data both in transit and at rest.

Tokenization vs. Encryption

Tokenization and encryption are both critical security measures designed to protect sensitive data, but they operate in fundamentally different ways. Tokenization replaces sensitive data, such as credit card numbers, with randomly generated tokens that hold no intrinsic value. These tokens are stored in a secure token vault, making it impossible to reverse-engineer the original data. This method significantly reduces the risk of data breaches, as intercepted tokens are useless to cybercriminals.

On the other hand, encryption transforms data into an unreadable format using complex algorithms. While encryption is effective, it can be vulnerable to decryption attacks if the decryption key is compromised. Unlike tokenization, which eliminates the original data from the transaction process, encryption still involves handling sensitive data, albeit in a protected form.

Therefore, tokenization is often considered a more secure option for safeguarding sensitive data, as it minimizes the risk of data breaches and enhances overall payment security.

Implementing Payment Tokenization

Implementing payment tokenization requires a strategic approach to ensure seamless integration with existing payment systems. Here are the main steps to implement payment tokenization effectively:

1. Choose a Tokenization Provider: Select a reputable tokenization provider that offers secure and compliant tokenization solutions. Look for providers with a proven track record in protecting sensitive credit card data and ensuring PCI DSS compliance.
2. Integrate with Payment Systems: Integrate the tokenization solution with your existing payment processing systems, including payment gateways and merchant accounts. This integration ensures that all transactions are securely tokenized from the point of entry.
3. Configure Tokenization Rules: Configure tokenization rules to determine which data elements to tokenize, such as credit card numbers, expiration dates, and CVV codes. This step is important for tailoring the tokenization process to your specific business needs.
4. Test and Validate: Conduct thorough testing and validation to ensure the tokenization solution works seamlessly with your payment systems. This step helps identify and resolve any potential issues before full implementation.
5. Monitor and Maintain: Continuously monitor and maintain the tokenization solution to ensure it remains secure and compliant. Regular audits and updates will address any emerging security threats and maintain the integrity of the tokenization process.

Benefits of payment tokenization

Payments payment tokenization offers numerous benefits for both businesses and consumers, enhancing security and reducing the risk of data breaches.

Enhances security

Tokenization safeguards sensitive card information by allowing customers to pay using saved card details without carrying their physical cards.

Digital wallets enhance this security through biometric verification methods, such as facial recognition, fingerprint scanning, or iris recognition.

By employing two-factor authentication—possession (something the user owns) and inherence (a unique physical identifier)—these transactions comply with Strong Customer Authentication (SCA) requirements.

This robust security not only protects transactions but can also lead to cost savings on fees in the future.

One-click payments for customers

Tokenization allows merchants to offer one-click or even "0-click" payment options, enabling customers to securely save their payment details.

As a result, shoppers can complete their purchases without re-entering payment information, significantly streamlining the checkout process. This convenience can lead to higher conversion rates at the checkout page.

Simplified for businesses

Tokenization simplifies data management for businesses by allowing the reuse of tokens for future transactions.

This streamlines the payment process and minimizes the need to repeatedly collect and store sensitive payment information.

As a result, businesses can reduce data management complexity and lower associated costs.

Fraud prevention and reduced data breaches

Tokens act as placeholders for sensitive cardholder information, but their value is confined to specific systems, making them meaningless outside that context.

Generated in real-time through algorithms, tokens cannot be easily decrypted or misused. They facilitate seamless and secure transactions for recurring purchases at the same merchant.

To combat fraud in Card-Not-Present (CNP) transactions, network tokens are increasingly adopted for their robust security features.

This approach significantly reduces the risks of data breaches since stolen tokens hold little value.

If a hacker breaches a system, they would only access tokens—strings of numbers with limited usability—rather than usable card details.

New technologies

Tokenization supports the adoption of emerging payment technologies like digital wallets and contactless payments.

By integrating tokenization, businesses can embrace innovative payment solutions while ensuring a high level of security.

Supports PCI DSS compliance

Tokenization simplifies PCI DSS compliance by reducing the risks and minimizing the scope of cardholder data storage and transmission.

For example, network tokens conceal card details at every transaction stage, so merchants only handle the token.

This approach saves time and resources spent on compliance efforts, allowing both businesses and customers to transact with confidence, knowing their sensitive data is secure

Common misconceptions about tokenization

There are several common misconceptions about tokenization that need to be addressed to ensure a clear understanding of its benefits and functionality:

1. Tokenization is the Same as Encryption: One of the most prevalent misconceptions is that tokenization and encryption are the same. While both are security measures, they operate differently. Tokenization replaces sensitive data with randomly generated tokens, whereas encryption transforms data into an unreadable format using algorithms.
2. Tokenization is Only for Credit Cards: Another misconception is that tokenization is limited to credit cards. In reality, tokenization can be used to protect various types of sensitive data, including debit cards, personal identifiable information (PII), and even health records.
3. Tokenization is Not Secure: Some believe that tokenization is not a secure method of protecting sensitive data. However, tokenization is highly secure as it eliminates the risk of data breaches by removing the original data from the transaction process. Even if tokens are intercepted, they hold no value outside the specific payment system.
4. Tokenization is Only for Large Businesses: Tokenization is often perceived as a solution only suitable for large enterprises. In fact, tokenization is beneficial for businesses of all sizes, providing a cost-effective and secure way to protect sensitive data and reduce the risk of data breaches.

Future of payment tokenization

1. Increased Adoption: As businesses recognize the security and compliance benefits of tokenization, its adoption is expected to become more widespread. This trend will be driven by the growing need to protect sensitive data and reduce the risk of data breaches.
2. Advancements in Technology: Technological advancements, such as artificial intelligence (AI) and machine learning, will continue to enhance the security and efficiency of tokenization solutions. These technologies can help detect and prevent fraudulent activities, further strengthening payment security.
3. Expansion into New Markets: Tokenization will expand into new markets, including emerging economies and industries such as healthcare and finance. This expansion will be driven by the increasing need for secure payment solutions in these sectors.
4. Integration with Emerging Technologies: Tokenization will be integrated with emerging technologies, such as blockchain and the Internet of Things (IoT), to provide even more secure and efficient payment solutions. These integrations will enable new use cases and applications for tokenization, further enhancing its value.

Conclusion

Payment tokenization is a powerful tool that enhances transaction security by replacing sensitive data with unique tokens.

This approach not only minimizes fraud risks but also streamlines the payment process for consumers and businesses alike.

With its ability to support various payment methods and technologies, tokenization is essential for companies looking to protect customer information while ensuring compliance with industry standards.

By adopting tokenization, businesses can foster trust, improve customer experiences, and safeguard their operations in an increasingly digital landscape.

Nuvei’s solution uses tokens from card schemes and banks to increase transaction visibility and reduce false declines. This enhancement in the authorization process creates a smoother payment experience, potentially boosting card payment conversion rates by up to 2.1%.