Crypto payments

How to mitigate the security risks associated with crypto payments

Learn how to mitigate security risks associated with crypto payments through methods such as hardware wallets and secure exchanges.

How can privacy-preserving tech help prevent crypto payment risks in Web3?

Technologies, such as zero-knowledge proofs, homomorphic encryption and multi-party computation, that guarantee privacy can reduce the risks associated with crypto payments on Web3 by safeguarding the private data exchanged during transactions.

Public blockchains — which are open and available to everyone — are frequently used to process cryptocurrency payments in Web3. This indicates that it is simple to track and keep an eye on payment information, such as sender and recipient addresses and transaction amounts. To address this issue, privacy-preserving technologies can help secure the users’ private data.

While homomorphic encryption allows computations to be conducted on encrypted data, keeping the information secret, zero-knowledge proofs enable the verification of transaction information without disclosing the underlying data.

The privacy of cryptographic payments in Web3 can also be improved by the use of multi-party computation. With the help of this technology, many parties can jointly compute their data without disclosing any private data to one another. This minimizes the possibility of a data breach by ensuring that no one party has access to all the payment information.

Furthermore, fraud prevention and threat protection can also be accomplished with the help of privacy-preserving technologies. For instance, by using secure multi-party computation, parties can jointly verify the legitimacy of a payment transaction before it is completed, ensuring that all parties involved are legitimate and the payment is secure.

How do you mitigate crypto payment risks?

Crypto payments come with inherent risks, such as the potential loss of funds due to theft or fraud. To mitigate these risks, it is essential to take steps to protect your cryptocurrency assets.

To purchase or sell cryptocurrencies, users must choose a trusted exchange that offers security. Before using the exchange, do some research to make sure it is regulated by the appropriate authorities and has a proven track record of security. 

Similarly, make sure to only use payment gateways that are licensed and regulated by reputable authorities to ensure that your funds are safe. It is also important to research the reputation and track record of the payment gateway before using it to ensure that it has a history of secure and reliable service.

Also, one must store their holdings in a safe wallet that supports two-factor authentication and high encryption. To safeguard one’s wallet and other accounts connected to cryptocurrency transactions, users should keep their software updated and use strong passwords and two-factor authentication.

Before finalizing the transaction, double-check the transaction’s specifics, including the recipient’s address and the transferred amount. Beware of phishing scams and public WiFi networks that might jeopardize your information.

Last but not least, one may adopt a hardware wallet, which adds another level of protection from cyberattacks by keeping one’s private keys offline. Maintaining up-to-date knowledge of the market’s most recent developments, such as security concerns and legislative changes, is another crucial step. Check the news and updates from reliable sources on a regular basis to make sure you are informed of any new risks or possibilities.

What are the security risks of using cryptocurrency as payment?

There are various security vulnerabilities associated with using cryptocurrencies as payment methods, including the possibility of theft, hacks and fraud. For instance, hackers can take advantage of flaws in exchanges, wallets and transactions. Additionally, consumers who are the targets of scams or fraudulent transactions have little redress because cryptocurrency transactions are irreversible.

The possibility of loss or theft is one of the biggest worries. Digital wallets, where cryptocurrencies are kept, are susceptible to hacking attempts, phishing scams and other cyberattacks. The money kept in a compromised wallet may be taken, and it can be difficult to get it back. Additionally, because cryptocurrency transactions are irreversible, the funds cannot be recovered if they are sent to an incorrect address or the wallet is compromised.

The possibility of fraud is another security issue concerned with cryptocurrency payments. In order to deceive consumers into sending money to what seems like correct addresses, hackers can make phony websites or copy trusted websites. This is a phishing attempt, and because the false website is identical to the real one, it can be difficult to spot. Moreover, hackers have the ability to fabricate fake cryptocurrency exchanges or wallets in order to steal money from unwary customers.

To steal a user’s digital assets, cybercriminals may try to use flaws in their computer or smartphone. To access a user’s digital wallet, they can employ a variety of techniques, such as phishing emails, spyware, ransomware and other cyberattacks.

Cybercriminals frequently use phishing emails to lure people into clicking on malicious links or downloading risky files. The attacker gains access to a user’s digital assets after they click the link or download the file. Malware — e.g, crypto mining malware — is yet another approach that hackers frequently employ. Malware is intended to harm, interfere with or steal data from a computer system. It can be installed on a user’s computer through various means, including phishing emails, fake software updates and drive-by downloads.

Ransomware encrypts user files and makes them inaccessible. After that, the assailant demands a ransom in return for the decryption key. There is no guarantee that the user will get the decryption key if they pay the ransom, and their digital assets could end up being permanently lost.

Lastly, there is a risk of regulatory uncertainty. The regulation of cryptocurrencies is still limited, and they have different legal standing in every nation. As a result, consumers have little protection at their disposal, and pursuing legal action in the event of theft or fraud can be challenging. As a result, people who use cryptocurrencies as payment methods need to be cautious and take the right security precautions to safeguard their money.

What are the several types of blockchain attacks?

Due to its decentralized and distributed structure, blockchain technology is intended to be secure and resistant to attacks. However, it is not completely immune to attacks, and many different types of blockchain attacks have been identified, including 51% attacks, double-spend attacks, sybil attacks and DDoS attacks. 

A 51% attack is one of the most frequent styles of blockchain attacks. In this attack, an attacker has control over more than 50% of the computational power of the blockchain network, giving them the ability to alter transactions and add fake transactions to existing blocks.

A double-spend attack is another form of blockchain assault where an attacker manipulates the consensus mechanism of the blockchain network to spend the same coin twice. Smaller blockchain networks with fewer nodes are more likely to experience this assault, making them more susceptible to manipulation.

Another typical form of blockchain attack is known as a sybil attack, in which the attacker sets up numerous fictitious identities or nodes in order to take over the network. The blockchain’s history can then be changed by using these false identities to control transactions.

Finally, there are distributed denial-of-service (DDoS) attacks, in which a perpetrator floods the blockchain network with traffic and blocks the processing of valid transactions. Smaller blockchain networks with fewer resources to protect against DDoS attacks are particularly vulnerable to these attacks.

Therefore, it is essential for blockchain networks to implement robust security measures and be vigilant against these types of attacks to maintain the integrity of the blockchain network.

Elon Musk wants Twitter payments system built with crypto in mind

Twitter’s upcoming payments tool will initially support only fiat currencies, but Elon Musk wants it built to potentially support crypto in the future.

Twitter chief Elon Musk has reportedly instructed his developers to build the platform’s payments system in such a way that crypto functionality can be added in the future.

According to a Jan. 30 Financial Times report, two people familiar with Twitter’s plans said that the payments feature will support fiat currencies to start but be built to accommodate cryptocurrencies should the opportunity arise.

Twitter has long teased bringing payments to the social media platform — forming part of Musk’s stated plan to make Twitter an “everything app.”

However, it has remained vague as to whether these payments will involve blockchain or crypto technology, despite the Twitter CEO seeing a big role for crypto on Twitter.

In early December, images were leaked revealing “Twitter Coins” — a secret in-development digital asset to be used for payments and tipping on the platform, with many hopeful it would involve crypto in some way.

However, the more recently leaked images of the project in early January made no mention of crypto or blockchain technology, much to the dismay of the community.

Unconfirmed rumors also emerged last October that Twitter was working on a wallet prototype that would support crypto deposits and withdrawals.

However, it appears for the time being, the payments system will go ahead with only fiat support.

To that end, Twitter has begun the application process for state-based regulatory licenses across the United States that would allow it to introduce payments to the platform.

One of the sources said the company hopes the U.S. licensing process will be completed within a year.

Related: The ‘Elon effect’ shows how opinion leaders shape the fintech market

In November, “Twitter Payments LLC” registered with the U.S. Treasury Department’s Financial Crimes Enforcement Network (FinCEN), which would allow it to process payments.

In a Twitter Space event around the same time, Musk said he envisioned allowing bank accounts to be connected to Twitter profiles and incorporating debit cards along with the platform being able to facilitate money transfers.

Following the future approval of the U.S. licenses, Twitter would eye gaining regulatory approvals internationally, according to one of the Financial Times’ sources.

US Senator Ted Cruz pushes for crypto in Congress … using snacks

A newly introduced resolution could potentially see lawmakers buying sodas and chips using crypto-supporting vending machines.

Texas Republican Senator Ted Cruz is pushing the United States Congress to adopt cryptocurrency within its halls using an incentive both sides might agree on — food.

Cruz introduced a concurrent resolution dated Jan. 25 that would only allow vending machine and food service contractors that accept crypto as a payment option within the U.S. Capitol.

If adopted, the Architect of the Capitol, the Secretary of the Senate and the Chief Administrative Officer of the House of Representatives would be required to find the crypto-accepting food and vending firms.

At the time of writing, the text of the resolution was not publicly available on the Congress website. It’s unknown the potential cost of implementing the measure, or if the resolution would require contractors to take payment in certain cryptocurrencies.

The U.S. Capital Cafe could be one of the purveyors required to take crypto payments. Source: Google

Cointelegraph contacted Cruz’s office for comment but did not immediately receive a response.

Cruz has long been a vocal advocate for cryptocurrencies, especially lauding Bitcoin (BTC) for its decentralization. At roughly this time last year, the senator bought between $15,000 and $50,000 worth of BTC, according to a financial disclosure.

Related: Crypto industry leaders ‘scared of a strong SEC’ — Senator Warren

He is one of only eight known crypto investors in Congress, according to the “Bitcoin Politicians” crowdsourced data project.

The list also includes Cynthia Lummis, the Wyoming senator behind a pro-crypto piece of legislation and Pat Toomey, a Pennsylvanian senator who recently introduced a stablecoin bill aiming to create a regulatory framework for payments.

Senator Cruz also has signaled his interest to make his home state of Texas an oasis for Bitcoin and other cryptocurrencies, saying crypto mining could be used to monetize the energy from oil and gas extraction and the activity may be used as an alternate way of storing energy.

The resolution put forward by Cruz will need to be agreed to in both the Senate and the House before it can be adopted.

Crypto payments platform Wyre lifts 90% withdrawal cap

Just five days after imposing them, Wyre has removed all limits on account withdrawals.

Crypto payment platform Wyre has lifted the 90% withdrawal limit it placed on users earlier this week after securing additional funding. 

On Jan. 13, the San Francisco-based fintech firm announced that it had received financing from a “strategic partner” that allows it to continue the normal course of operations, including re-accepting deposits again.

“As a regulated financial institution, we’re proud that we were able to continue delivering our services in a safe and sound manner without pausing withdrawals,” it added.

Wyre set withdrawal limits on Jan. 8, restricting customers from emptying their accounts entirely.

The limits were imposed just two days after former employees hinted at the possibility of the firm’s shutdown. Explaining the withdrawal cap then, Wyre said it was in “the best interest of our community,” without divulging further.

However, as of the latest update, Wyre says it has now removed that cap and full withdrawals and deposits are permitted again after receiving “additional capital” from an unnamed “strategic partner.”

“We will resume accepting deposits and lift the 90% withdrawal limit effective immediately.”

“This additional capital will help us continue to deliver on our mission to simplify and revolutionize the global financial ecosystem,” it added.

Cast your vote now!

Wyre provides real-time payouts, same-day transfers, direct-to-bank transfers, and cross-border payments in fiat and crypto. The company was acquired by fintech firm Bolt for $1.5 billion in April.

Related: Cryptocurrency is headed toward surviving its first age

The company, founded in 2013, has been feeling the squeeze like many others in the crypto bear market. It laid off 75 employees earlier this month, according to reports.

Furthermore, concerns have been raised over insolvency as reports circulated regarding a potential shutdown in early January. However, the company has denied them and today’s announcement suggests that its current situation has improved.

Popular crypto wallet MetaMask severed ties with Wyre on Jan. 5 when it announced the removal of the platform from its mobile aggregator and browser extension.

Programmer spends 69 nights in Bitcoin Cash City using only BCH: Here’s how it went

Silverblood says using Bitcoin Cash as payment method “makes sense” because it’s part of his income and “it’s less effort than some of the other forms of payment I use.”

When programmer Jonathan Silverblood flew to Townsville, Australia from his Finland home for a two-and-a-half-month holiday in August, he had one main task — pay for everything he could using Bitcoin Cash (BCH).

The coastal city of Townsville is known as the Bitcoin Cash City, a name derived from a conference of the same name that first launched in 2019. It is understood to have a strong number of merchants that accept the Bitcoin-forked token.

Silverblood said while attending the conference in 2019, he was intrigued by the number of merchants and vendors offering BCH as a payment option in Townsville and had planned a return to the city once COVID-19 restrictions were lifted.

“Going to this destination was entirely about using BCH and was also kind of an excuse to spend more than I usually do, while simultaneously getting more work done by letting family and kids have a vacation with their grandma,” he told Cointelegraph after he returned home from the trip. 

“Using it to pay for things while I was there just made sense, partially because I already have my income paid in BCH, and partially because it’s just so much less effort than some of the other forms of payment I use.”

Silverblood is a Bitcoin Cash enthusiast and programmer. He has been working at General Protocols for the last three years, where his salary is paid in BCH.

He noted that in the 69 nights he spent in the city, he was ultimately able to conduct 130 transactions using Bitcoin Cash. These included goods and services at cafes, restaurants, and hotels, getting a tooth pulled at a dentist, a haircut and getting a Steam Deck gaming console repaired:

“Some days were pretty busy; we would buy breakfast, lunch, ice cream, bread and dinner, but sometimes my family wanted to go elsewhere rather than eat at the specific BCH accepting merchants.”

Silverblood also made several payments using BCH that weren’t with businesses in Townsville, including Steam and Netflix gift cards, “plus a few bills back home.”

However, his Bitcoin Cash-funded holiday was not without its hiccups. 

Silverblood says his experience using BCH as a payment method was successful but not “wildly successful” because of issues with payment terminals running out of power, WiFi access and some merchants being unable to offer crypto as an option at the time of payment.

“When I got to the airport in Townsville I also wanted to pay for a cab ride to the hotel, but a competing cab company bought up the cab company that took BCH, so that was no longer an option.”

He also found that not all merchants were open to the idea of using BCH because they did not want to “complicate bookkeeping” and “couldn’t stomach the volatility.”

“For most merchants I spoke with during my trip, it seems to just be that the number of customers paying with crypto is just too small to motivate additional staff education costs, additional hardware like WiFi and payment terminals,” Silverblood said.

“Cryptocurrencies are here, and they work, but merchant adoption is slow and spread out, which makes it hard to live entirely off,” he added.

Silverblood said he also didn’t end up buying his plane tickets with BCH, as his family wanted to fly Qatar Airways specifically, which doesn’t currently accept crypto as a payment method. 

This is despite the airline launching their own metaverse in July.

Related: 21-year-old got ‘thought-provoking’ questions after teaching crypto to old folks

Silverblood and his family have since returned home to Finland, but the programmer is confident this won’t be the last time he will use crypto to pay for goods and services.

“I will absolutely try and do something like this again, in just a few weeks, I’m flying over to another Bitcoin Cash hotspot, St Kitts, for the BCH 2022 conference,” he said.

“I don’t know what to expect there though, I’ve heard everything from 100% all merchants accept it, only half do and merchants will accept it, but you need a special wallet.”

Walmart CTO says crypto will become a ‘major’ payments disruptor

Suresh Kumar suggested that crypto will become an important payment tool across the Metaverse and social media, as these areas will be a major way customers discover new products.

Walmart’s global chief technology officer (CTO) Suresh Kumar has tipped cryptocurrency to become a “major” area of disruption, particularly in how customers pay for virtual and physical goods in the future. 

Speaking at the Yahoo Finance All Markets Summit on Oct. 17, Kumar outlined Walmart’s positive stance on digital assets, noting that “crypto will become an important part of how customers transact” for both physical and virtual goods.

“I think that there are three major areas of disruption. Crypto falls in sort of the middle of it,” he said, explaining that “the way in which customers are getting inspired and discovering products” is changing.

Kumar also suggested that a significant amount of customers will be marketed to through the Metaverse and live streams on social media apps, and that crypto could be an important payment option in these kinds of areas.

“When you specifically talk about crypto, it is going to be about discovery of products, whether it is physical or virtual inside, either the Metaverse or upfront, and then how people transact.”

Such may explain Walmart’s recent foray into the Roblox Metaverse, launching Walmart Land in late September. The company is hosting a range of virtual experiences there such as games, a DJ booth and Ferris wheel, while also offering virtual merchandise products called “verch” for users’ avatars.

NFTs and crypto are not integrated with the Roblox metaverse at this stage, however Walmart has previously indicated in patent filings from January that it could look to create digital currencies, tokens and NFTs in the Metaverse space sometime in the future.

“We want to make sure that we make it as friction free for customers to be able to transact, and to be able to buy, and how they are able to derive value out of it. And that is where– I think a lot of the disruption is going to start happening in terms of different payment methods, different payment options,” he said.

Related: Facebook is on a quest to destroy the Metaverse and Web3

The multinational retail giant has been rumored to have been working on rolling out crypto payment support for a while, but so far only false alarms have arisen such as the fake deal with Litecoin (LTC) that was announced via a dubious press release from September last year.

As it stands, there were around 200 Bitcoin (BTC) ATMs installed at Walmart stores across the U.S. in October 2021, with plans at the time to expand that number to 8,000 at an unspecified time in the future.

Walmart CTO says crypto will become a ‘major’ payments disruptor

Suresh Kumar suggested that crypto will become an important payment tool across the Metaverse and social media, as these areas will be a major way customers discover new products.

Walmart’s global chief technology officer Suresh Kumar has tipped cryptocurrency to become a “major” area of disruption, particularly in how customers pay for virtual and physical goods in the future. 

Speaking at the Yahoo Finance All Markets Summit on Oct. 17, Kumar outlined Walmart’s positive stance on digital assets, noting that “crypto will become an important part of how customers transact” for both physical and virtual goods.

“I think that there are three major areas of disruption. Crypto falls in sort of the middle of it,” he said, explaining that “the way in which customers are getting inspired and discovering products” is changing.

Kumar also suggested that a significant amount of customers will be marketed to through the Metaverse and live streams on social media apps, and that crypto could be an important payment option in these kinds of areas:

“When you specifically talk about crypto, it is going to be about discovery of products, whether it is physical or virtual inside, either the Metaverse or upfront, and then how people transact.”

Such may explain Walmart’s recent foray into the Roblox Metaverse, launching Walmart Land in late September. The company is hosting a range of virtual experiences there such as games, a DJ booth and a Ferris wheel, while also offering virtual merchandise products called “verch” for users’ avatars.

Nonfungible tokens (NFTs) and crypto are not integrated with the Roblox metaverse at this stage. However, Walmart has previously indicated in patent filings from January that it could look to create digital currencies, tokens and NFTs in the Metaverse space sometime in the future.

“We want to make sure that we make it as friction free for customers to be able to transact, and to be able to buy, and how they are able to derive value out of it. And that is where– I think a lot of the disruption is going to start happening in terms of different payment methods, different payment options,” he said.

Related: Facebook is on a quest to destroy the Metaverse and Web3

The multinational retail giant has been rumored to have been working on rolling out crypto payment support for a while, but so far only false alarms have arisen such as the fake deal with Litecoin (LTC) that was announced via a dubious press release from September last year.

As it stands, there were around 200 Bitcoin (BTC) ATMs installed at Walmart stores across the United States in October 2021, with plans at the time to expand that number to 8,000 at an unspecified time in the future.

Bored Apes, Moonbirds to feature on NFT-customized Mastercard debit cards

The customizable card will only support NFT avatars from select blue chip collections, subject to Mastercard’s design standards and an owner verification process.

Mastercard has launched customizable nonfungible token (NFT) debit cards, allowing some cardholders who own avatars from select NFT collections to add the artwork onto the payment card.

The debit cards are made available through a Monday partnership with the European cryptocurrency exchange platform hi, allowing its Gold members to personalize their debit cards with an NFT they verifiably own.

Gold membership with the platform is obtained by staking a minimum of 100,000 hi Dollar’s (HI), the platform’s native token, a sum worth around $4,600, according to data from CoinGecko.

The cards will allow spending in fiat, stablecoins or any cryptocurrency the user holds and is accepted wherever Mastercard is available. Other features such as hotel credits, cash back incentives and rebates on Netflix and Spotify subscriptions are also touted as benefits of certain membership levels.

Mastercard’s crypto and fintech enablement vice president, Christian Rau, said with consumer interest in NFTs and crypto growing the payments provider was “committed to making them an accessible payments choice for the communities who wish to use them.”

A limited range of NFT collections will be supported including CryptoPunk, Moonbirds, goblintown, Bored Ape and Azuki, owners of these NFTs will have to become Gold members with hi and verify their NFT ownership with the platform to receive their custom cards.

Additionally, the cards are available only within 25 European Economic Area (EEA) countries and the United Kingdom.

Related: Innovation will drive NFT adoption despite mainstream presence: NFTGo founder

With the wider downturn in crypto markets over the last few months, most of the “blue chip” NFT collections took a price hit, but data by NFTGo shows the performance of blue-chip NFTs growing steadily since Sept. 12 possibly bringing renewed interest to the largest collections.

Mastercard has helped crypto payments go mainstream with its support for the assets, even allowing Mastercard holders the ability to purchase NFTs through partnering with multiple NFT marketplaces in June.

Vitalik: People still ‘underrate’ the superiority of crypto payments

The Ethereum co-founder suggests that cryptocurrency payments are a “big boost” to international business, charity, and even payments within countries.

Ethereum co-founder Vitalik Buterin suggests the superiority of cryptocurrency for payments is often “underrated” compared to fiat, pointing to the convenience of international payments and payments to charities as key examples. 

Buterin made the comments in a Twitter thread on Aug. 24, explaining that it’s not just resistance to censorship, but also convenience that makes cryptocurrencies “superior” when it comes to international business, charity, and even payments within countries.

Cryptocurrency adoption in payments has been growing globally. A report from data platform PYMNTS titled “Paying With Cryptocurrency” in July found that among businesses surveyed with annual income exceeding $1 billion, 85% said they are adopting crypto payments to find and gain new customers.

The availability of crypto debit cards has also been growing quickly, with Binance recently partnering with Mastercard to announce a prepaid card for Argentinians. Many of these cards, such as Wirex’s, even reward users with crypto cashback for paying through the card and facilitate spending of several major cryptocurrencies, fiat currencies, as well as the withdrawal of cash from ATMs.

As pointed out by Vitalik, cryptocurrencies are also particularly useful when transferring money internationally and for charitable donations. Traditionally when done using fiat currency, international payments can take a long time to process and results in large fees. The war in Ukraine is one great example of its usefulness in this regard, with Vice Prime Minister Mykhailo Fedorov having tweeted on Aug. 18 that $54 million has been raised by nonprofit and activist group Aid For Ukraine alone.

However, not everyone has been as bullish about crypto’s use as means of payment, with common objections including price volatility, ease of use, and regulatory risk, as well as high-transaction fees and long processing times for certain cryptocurrencies, such as Bitcoin and Ethereum. 

While it can vary, the Bitcoin blockchain handles approximately five transactions per second (TPS), and averages fees of $0.819 as of Aug 24, while Ethereum is currently handling around 29.3 TPS with average fees of $1.57. Visa on the other hand claims to be able to handle 24,000 transactions per second and charges between 1.4 and 2.5% per transaction.

Related: Ukraine has shown the value cryptocurrency offers to real people

The development of the lightning network, a layer-2 solution built on top of Bitcoin’s blockchain, could be a solution for Bitcoin’s lagging TPS, while Ethereum has been looking to layer-2 roll-up technology, such as ZK-rollups to vastly reduce fees and processing times.

Stablecoins, cryptocurrencies designed to be pegged to another asset (such as the United States dollar), have also become a popular medium of exchange, particularly in emerging economies.

Vitalik: People still ‘underrate’ the superiority of crypto payments

The Ethereum co-founder suggests that cryptocurrency payments are a “big boost” to international business, charity, and even payments within countries.

Ethereum co-founder Vitalik Buterin suggests the superiority of cryptocurrency for payments is often “underrated” compared to fiat, pointing to the convenience of international payments and payments to charities as key examples. 

Buterin made the comments in a Twitter thread on Wednesday, explaining that it’s not just resistance to censorship but also convenience that makes cryptocurrencies “superior” when it comes to international business, charity and even payments within countries.

Cryptocurrency adoption in payments has been growing globally. A report from data platform PYMNTS titled “Paying With Cryptocurrency” in July found that among businesses surveyed with annual income exceeding $1 billion, 85% said they are adopting crypto payments to find and gain new customers.

The availability of crypto debit cards has also been growing quickly, with Binance recently partnering with Mastercard to announce a prepaid card for Argentinians. Many of these cards, such as Wirex’s, even reward users with crypto cashback for paying through the card and facilitate spending of several major cryptocurrencies and fiat currencies, as well as the withdrawal of cash from ATMs.

As pointed out by Vitalik, cryptocurrencies are also particularly useful when transferring money internationally and for charitable donations. Traditionally when done using fiat currency, international payments can take a long time to process and results in large fees. The war in Ukraine is one great example of its usefulness in this regard, with Vice Prime Minister Mykhailo Fedorov having tweeted on Aug. 18 that $54 million has been raised by nonprofit and activist group Aid For Ukraine alone.

However, not everyone has been as bullish about crypto’s use as means of payment, with common objections including price volatility, ease of use, and regulatory risk, as well as high-transaction fees and long processing times for certain cryptocurrencies such as Bitcoin (BTC) and Ether (ETH). 

While it can vary, the Bitcoin blockchain handles approximately five transactions per second (TPS), and averages fees of $0.819 as of Wednesday, while Ether is currently handling around 29.3 TPS with average fees of $1.57. Visa, on the other hand, claims to be able to handle 24,000 transactions per second and charges between 1.4 and 2.5% per transaction.

Related: Ukraine has shown the value cryptocurrency offers to real people

The development of the lightning network, a layer-2 solution built on top of Bitcoin’s blockchain, could be a solution for Bitcoin’s lagging TPS, while the Ethereum Network has been looking to layer-2 roll-up technology, such as zk-Rollups to vastly reduce fees and processing times.

Stablecoins, cryptocurrencies designed to be pegged to another asset (such as the United States dollar), have also become a popular medium of exchange, particularly in emerging economies.