Blockchain to Secure Contactless Payments

Blockchain, which keeps track of all transactions, makes an excellent tool for financial services, particularly contactless payments.

The global payment industry has seen massive growth in recent
years, be it mobile payment apps like Alipay or online payment systems like
PayPal. This growth is credited to technologies like Near Field Communication and Radio Frequency Identification, which enable
payment devices to communicate information and hence, have made contactless
payments possible.

These technologies work by using an embedded chip in a
device, which then allows instant payments by waving or tapping it over a
reader. The communication between reader and device is done over radio waves,
which means that both should be in proximity in order to make the transaction

See also: How Companies are Using Blockchain to Transform Business

Contactless payment devices include smart cards, debit and
credit cards, smartphones, key fobs, and others. While this method is fast and
easy, it still has security loopholes. The main challenge is that there isn’t
any way to verify merchant outlets and also find out if they were exposed to
risk in the past. Hence, a customer may fall victim to a cyber-criminal where they
steal their financial information by intercepting wireless signals from their

Enter Blockchain

Blockchain, a distributed database system, records and
maintains a list of transactions that take place in real-time. Records on
blockchain are time-stamped with high-level data encryption, hence making them
indisputable and tamper-resistant.  For
instance, imagine you have a cash note which comes with an encrypted data ledger.
It carries the details of every transaction it has done during its entire
lifetime. When you receive the note, you have the entire transaction history
with you. You can make a decision whether the person handing over the note to
you is worth transacting with or not. This feature is what blockchain basically
provides. It provides an additional layer of trust and security to ensure that
both parties come out safe and satisfied with a transaction.

When paying through a blockchain contactless payment system,
customers can find out if the merchant they are dealing with has been fair or
fraudulent in past transactions. This is possible because the system will
record all instances of fraud by the merchant and share this data with new
customers to keep them warned. Since the data is stored in an encrypted ledger,
the merchants are unable to change it.

In a similar way, merchants can also identify a fraudulent
customer and take precautions. Hence, a system that is powered with blockchain
contactless payments does not give an upper hand to any of the parties.

In addition to ensuring better security, blockchain can also
make efficient payment processes possible. According to a report by Deloitte,
the integration of the two technologies reduced overall costs for institutions.
It is further very likely that new advantages of blockchain will become known
with the advancement in technology.

Security Benefits
of Blockchain for Mobile Wallets

Secure Transactions

The foremost challenge mobile payments face is security, and
that is where blockchain provides the biggest benefit. It can prevent
price-scoring, duplicate spending, and online fraud. Similarly, with cash and
check being a thing of the past, soon, plastic cards are going to take a
backseat with mobile wallets taking the front place. But since mobile wallets
face a big challenge of overcoming security threats, blockchain can cater to
its safety features such as multi-signature for buying verification.

Blockchain can authorize, authenticate, and audit the data.
With its decentralized nature, it also eliminates the need for a third party
and doesn’t have a single point of failure. It works as a shared, public, and
universal ledger and creates confidence and consensus between two parties that
are directly communicating.

Peer-to-Peer Lending

Peer-to-Peer lending is the latest trend in the payment
industry. However, we regularly hear stories of online fraud where people send
money by trusting an individual who promises to deliver a good or service and
then disappears. With the help of blockchain, borrowers can directly take a
loan from the lender through their mobile devices. This greatly reduces the
hassle and bypasses the paperwork involved in traditional banking systems.
Additionally, the inherent trust factor associated with blockchain also helps
protect people for their blockchain transactions with the help of smart contracts.

Integration with Smart

Other than smart phones and tablets, mobile payments can now
be done with IoT devices such as watches, rings, and bracelets. Using
blockchain, a user can save their payment information in any smart device
without having to worry about fraud.

Other Applications of

Faster Payments

With mobile wallets, the users naturally have an expectation
for transactions to occur instantly, which is generally not the case. It
usually takes time for a transaction to be successfully completed. With
transactions occurring over blockchain platform, all transactions can be processed
much faster across the borders.

Reward Programs

Mobile is successfully being used as a platform to manage
rewards. Blockchain technology can take it from here to the next level and
improve the points trading process. Since all transactions are stored in a
public ledger, businesses can check and monitor how the points are traded,
which is not easy for them at present.


At the core, blockchain serves as a complete record book by
keeping track of all transactions. This makes it an excellent tool for
financial services, particularly contactless payments. With all this taking
place so swiftly, we are left to wonder if blockchain is the future of the
payment industry.