Business handling payment data is evolving by leaps and bounds. With continuing expansion of digital commerce, mobile payments, subscriptions and online transactions, safeguarding sensitive payment data is becoming a business priority. For years, protecting payment data has always been one of the principal ways to do so, and encryption remains at the top of the list. Although encryption is part of an effective security design, payment tokenization is being used in greater numbers to minimize exposure to sensitive or critical payment data. Payment tokenization differs: it doesn’t just encrypt sensitive payment information, it replaces it with a random token that lacks any meaningful value in any other payment context. Why is this occurring, though, and why is it that businesses are making this move, and why is it that tokenization doesn’t the same thing as encryption? Let’s explore.
What Is the Difference Between Encryption and Payment Tokenization?
Encryption and tokenization are both methods of protecting sensitive information, but they operate in different ways. Encryption is a process of converting readable data into an unreadable format through an algorithm and key. An unauthorized party may not be able to find the original information without the proper decryption key. Payment tokenization, on the other hand, masks sensitive payment data like credit or debit card information and assigns a one-of-a-kind token to it. There is a token vault that securely stores the first transaction of payment and then a specialized payment provider that keeps all the data for the subsequent payments by the business. For instance, if the number on a customer’s card is 454587, the business may keep the following:
tok_8F72X91K45
The token doesn’t safely store the card number of the customer and the token usually can’t be used to create the card number itself. This is especially useful to businesses that require regular or same card payments but would not want to have to expose their sensitive payment details again and again.
Why Encryption Alone Can Become Challenging
Encryption remains a crucial player in data protection for both, data at rest as well as data in transit. But companies may encounter other troubles if they hold sensitive payment details in their systems.
Sensitive Data Still Exists
Sensitives are still sensitive whether each one is encrypted or not. Where a business holds encrypted payment data, it is critical that it safeguards the encrypted data and the encryption system and keys that facilitate decrypting the data. This adds further obligations for security.
Key Management Becomes Critical
The keys of the kingdom are the base of encryption. Keeping those keys in safe hands and safely rotating, storing, and handling those keys efficiently can become a tedious task with increasing organization sizes. If the encryption key can be compromised, then considerable amounts of protected information might be exposed.
Larger Attack Surfaces
The greater volume of systems that communicate with valuable payment data the higher risk there is of unauthorised access. Payment tokenization can lower this vulnerability by cutting down on the number of systems that process raw payment information.
Increasing Compliance Requirements
Payment security, privacy and regulatory compliance are issues to consider for businesses engaged in digital payments. Improving the security and compliance posture could be easier if internal systems are used to transfer less sensitive payment information.
How Payment Tokenization Solves the Problem
Payment tokenization is implemented by substituting sensitive payment information with non-sensitive information. A simplified payment flow looks like this:
Customer Payment Data → Tokenization Service → Secure Token → Payment Processing
Once the customer uses the card details, it is securely passed to a tokenization service. The service creates a token and safely keeps the link between the token and the primary payment detail. This means that the business can use the token for future transactions, without having to store or send the client’s actual card details to them again. This can help to greatly minimise how sensitive payment data is flowing through business applications.
Key Benefits of Payment Tokenization
Enhanced Payment Data Security
When compared to other common security threats, one of the greatest benefits of tokenized payments is that sensitive payment details are not stored or processed in business systems in large quantities. Normally tokens won’t help the attacker if a database with tokens is breached and the targets are the original payment credentials.
Reduced Exposure to Payment Data
Businesses can structure their systems to base most interactions with applications, databases and systems of any kind on tokens rather than ecard data. This makes it more difficult to deal with payment information on the small-scale level.
Support for Recurring Payments
For businesses that are subscription-based or have recurring payments, tokenization can prove invaluable. Organizations can store a token instead of the customer’s actual card information and then utilize it for safe bills down the road. It is useful for subscription businesses, SaaS solutions, marketplaces and other recur to revenue businesses.
Improved Customer Experience
Another benefit of payment tokenization is that it can help improve the payment process. Key capabilities that businesses can benefit from and securely support include:
- Saved payment methods
- One-click payments
- Recurring billing
- Subscription payments
- Faster checkout
- Multiple payment channels
This enables customers to have a convenient experience without forcing businesses to keep unnecessary payment data with them.
Better Scalability
Handling sensitive payment details right across a range of applications can become more challenging as the number of transactions rises. With tokenization, businesses can create payment systems that enclose protected information while other apps use tokens. This architecture can simplify payment operations scaling on a web site, in mobile apps, marketplaces and any other digital platforms.
Why Businesses Are Moving Toward Tokenization
Payment tokenization is not just about switching out one technology for another. It is an example of the general trend in business payment security. Matching up with businesses today who must deal is:
- Increasing digital transaction volumes
- Growing cyberattack risks
- More complex payment ecosystems
- Higher customer expectations
- Recurring payment requirements
- Multiple payment channels
- Increasing security and compliance responsibilities
The more complicated the systems get, the less sensitive payment information businesses have to directly manage can be attractive. Tokenization solves this problem by keeping the amount of information that constitutes a payment different from the information required to access the system.
Tokenization Does Not Mean the End of Encryption
Remember that payment tokenization by itself isn’t always seen as encryption. In some current payment scenarios, to/from these are used in combination. Encryption can be used to secure data during transportation and storage, and tokenization can be used to minimize security exposure of sensitive payment credentials from applications to databases. A layered security strategy may therefore combine:
- Encryption
- Payment tokenization
- Secure authentication
- Access controls
- Fraud detection
- Network security
- Monitoring and logging
Implementing more than a single security mechanism gives the business the opportunity to tackle various payment security components without relying on a single technology.
The Future of Payment Security
Digital payments are getting ever more interdependent. Consumers crave quick and convenient transactions and businesses require secure payment data across websites, apps, wallets, marketplaces and subscription sites. This is a fundamental challenge: how businesses can enable frictionless payments without exposing sensitive payment data unnecessarily. One crucial element is payment tokenization. The same tokenization principles are also expanding into other financial applications, including private credit tokenization platform development, where secure digital infrastructure can help manage and represent financial assets more efficiently. A single technology is unlikely to be the solution of the future when it comes to payment security. Rather, businesses will increasingly be able to integrate several security protocols including tokenization, data encryption, fraud prevention systems, authentication mechanisms and secure infrastructure to build more robust and resilient payment systems.
Conclusion
While encryption is an essential aspect of payment security, businesses continually seek methods to minimize exposure of sensitive payment data, one example of which is payment tokenization. In addition to helping to keep more sensitive information off of company networks, secure tokens can enable secure and seamless digital payments. Combining encryption and tokenization can be useful for addresses that handle e-commerce, recurring, mobile or fintech payments. Instead of sticking to a single technology, businesses can combine technologies to create a more secure, scalable, and future-ready payment ecosystem that meets the changing needs of digital payments.
