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Cryptocurrency Explained With Pros and Cons for Investment
What Is Cryptocurrency?
A cryptocurrency is a digital or virtual currency secured by cryptography, which makes it nearly impossible to counterfeit or double-spend. Many cryptocurrencies are decentralized networks based on blockchain technology—a distributed ledger enforced by a disparate network of computers.
A defining feature of cryptocurrencies is that they are generally not issued by any central authority, rendering them theoretically immune to government interference or manipulation.
A cryptocurrency is a form of digital asset based on a network that is distributed across a large number of computers. This decentralized structure allows them to exist outside the control of governments and central authorities.
Some experts believe blockchain and related technologies will disrupt many industries, including finance and law.
The advantages of cryptocurrencies include cheaper and faster money transfers and decentralized systems that do not collapse at a single point of failure.
The disadvantages of cryptocurrencies include their price volatility, high energy consumption for mining activities, and use in criminal activities.
Cryptocurrencies are digital or virtual currencies underpinned by cryptographic systems. They enable secure online payments without the use of third-party intermediaries. "Crypto" refers to the various encryption algorithms and cryptographic techniques that safeguard these entries, such as elliptical curve encryption, public-private key pairs, and hashing functions.
Cryptocurrencies can be mined, purchased from cryptocurrency exchanges, or rewarded for work done on a blockchain. Not all e-commerce sites allow purchases using cryptocurrencies. In fact, cryptocurrencies, even popular ones like Bitcoin, are hardly used for retail transactions. However, cryptocurrency values have made them popular as trading and investing instruments. To a limited extent, they are also used for cross-border transfers.
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Central to the appeal and functionality of Bitcoin and other cryptocurrencies is blockchain technology. As its name indicates, a blockchain is essentially a set of connected blocks of information on an online ledger. Each block contains a set of transactions that have been independently verified by each validator on a network.
Every new block generated must be verified by each node before being confirmed, making it almost impossible to forge transaction histories.1 The contents of the online ledger must be agreed upon by a network of individual nodes, or computers that maintain the ledger.
Experts say that blockchain technology can serve multiple industries, supply chains, and processes such as online voting and crowdfunding. Financial institutions such as JPMorgan Chase & Co. (JPM) are testing the use of blockchain technology to lower transaction costs by streamlining payment processing.2
Types of Cryptocurrency
Many cryptocurrencies were created to facilitate work done on the blockchain they are built on. For example, Ethereum's ether was designed to be used as payment for validation work done on the blockchain. When the blockchain transitioned to proof-of-stake in September 2022, ether (ETH) inherited an additional duty as the blockchain's staking mechanism. Ripple's XRP is designed to be used by banks to facilitate transfers between different geographies.
Because there are so many cryptocurrencies on the market, it's important to understand the types of cryptocurrencies. Understanding if the coin you're looking at has a purpose can help you decide whether it is worth investing in—a cryptocurrency without a purpose is likely to be riskier than one with utility.
Most of the time, when you hear about cryptocurrency types, you hear the coin's name. However, coin names differ from coin types. Here are some of the types you'll find with some of the names of tokens in that category:
Utility: XRP and ETH are two examples of utility tokens. They serve specific functions on their respective blockchains.
Transactional: Tokens designed to be used as a payment method. Bitcoin is the most well-known of these.
Governance: These tokens represent voting or other rights on a blockchain, such as Uniswap.
Platform: These tokens support applications built to use a blockchain, such as Solana.
Security tokens: Tokens representing ownership of an asset, such as a stock that has been tokenized (value transferred to the blockchain). MS Token is an example of a securitized token. If you can find one of these for sale, you can gain partial ownership of the Millenium Sapphire.3
If you find a cryptocurrency that doesn't fall into one of these categories, you've found a new category or something that needs to be investigated to be sure it's legitimate.
Are Cryptocurrencies Legal?
Fiat currencies derive their authority from the government or monetary authorities. For example, each dollar bill is backstopped by the Federal Reserve.
But cryptocurrencies are not backed by any public or private entities. Therefore, it has been difficult to make a case for their legal status in different financial jurisdictions throughout the world. It doesn't help matters that cryptocurrencies have largely functioned outside most existing financial infrastructure. The legal status of cryptocurrencies has implications for their use in daily transactions and trading. In June 2019, the Financial Action Task Force (FATF) recommended that wire transfers of cryptocurrencies should be subject to the requirements of its Travel Rule, which requires AML compliance.
As of January 2023, El Salvador and the Central African Republic were the only countries to accept Bitcoin as legal tender for monetary transactions.
In the rest of the world, cryptocurrency regulation varies by jurisdiction.
Japan's Payment Services Act defines Bitcoin as legal property.
Cryptocurrency exchanges operating in the country are subject to collect information about the customer and details relating to the wire transfer. China has banned cryptocurrency exchanges and mining within its borders. India was reported to be formulating a framework for cryptocurrencies.
Cryptocurrencies are legal in the European Union. Derivatives and other products that use cryptocurrencies must qualify as "financial instruments." In June 2021, the European Commission released the Markets in Crypto-Assets (MiCA) regulation that sets safeguards for regulation and establishes rules for companies or vendors providing financial services using cryptocurrencies.
Within the United States, the biggest and most sophisticated financial market in the world, crypto derivatives such as Bitcoin futures are available on the Chicago Mercantile Exchange. In the past, the Securities and Exchange Commission (SEC) took the stance that Bitcoin and Ethereum were not securities; however, in September 2022, SEC Chair Gary Gensler stated he believes cryptocurrencies are securities. This stance implies that cryptocurrency's legal status may become subject to regulation
Although cryptocurrencies are considered a form of money, the Internal Revenue Service (IRS) treats them as financial assets or property for tax purposes. And, as with most other investments, if you reap capital gains selling or trading cryptocurrencies, the government wants a piece of the profits. How exactly the IRS taxes digital assets—either as capital gains or ordinary income—depends on how long the taxpayer held the cryptocurrency and how they used it.
Are Cryptocurrencies Safe Investments?
Cryptocurrencies have attracted a reputation as unstable investments due to high investor losses as a result of scams, hacks, and bugs. Although the underlying cryptography is generally secure, the technical complexity of using and storing crypto assets can be a significant hazard to new users.
In addition to the market risks associated with speculative assets, cryptocurrency investors should be aware of the following risks:
User risk: Unlike traditional finance, there is no way to reverse or cancel a cryptocurrency transaction after it has already been sent. By some estimates, about one-fifth of all bitcoins are now inaccessible due to lost passwords or incorrect sending addresses.11
Regulatory risks: The regulatory status of some cryptocurrencies is still unclear, with many governments seeking to regulate them as securities, currencies, or both. A sudden regulatory crackdown could make it difficult to sell cryptocurrencies or cause a market-wide price drop.
Counterparty risks: Many investors and merchants rely on exchanges or other custodians to store their cryptocurrency. Theft or loss by one of these third parties could result in losing one's entire investment.
Management risks: Due to the lack of coherent regulations, there are few protections against deceptive or unethical management practices. Many investors have lost large sums to management teams that failed to deliver a product.
Programming risks: Many investment and lending platforms use automated smart contracts to control the movement of user deposits. An investor using one of these platforms assumes the risk that a bug or exploit in these programs could cause them to lose their investment.
Market Manipulation: Market manipulation remains a substantial problem in cryptocurrency, with influential people, organizations, and exchanges acting unethically.
Despite these risks, cryptocurrencies have seen a major leap in prices, with the total market capitalization rising to over $1 trillion.12 Despite the speculative nature of the asset, some have been able to create substantial fortunes by taking on the risk of investing in early-stage cryptocurrencies.
Advantages and Disadvantages of Cryptocurrency
Cryptocurrencies were introduced with the intent to revolutionize financial infrastructure. As with every revolution, however, there are tradeoffs involved. At the current stage of development for cryptocurrencies, there are many differences between the theoretical ideal of a decentralized system with cryptocurrencies and its practical implementation.
Some advantages and disadvantages of cryptocurrencies are as follows.
Removes single points of failure
Easier to transfer funds between parties
Removes third parties
Can be used to generate returns
Remittances are streamlined
Transactions are pseudonymous
Pseudonymity allows for criminal uses
Have become highly centralized
Expensive to participate in a network and earn
Off-chain security issues
Prices are very volatile
Cryptocurrencies represent a new, decentralized paradigm for money. In this system, centralized intermediaries, such as banks and monetary institutions, are not necessary to enforce trust and police transactions between two parties. Thus, a system with cryptocurrencies eliminates the possibility of a single point of failure, such as a large bank, setting off a cascade of crises around the world, such as the one triggered in 2008 by the failure of institutions in the United States.
Cryptocurrencies promise to make it easier to transfer funds directly between two parties without needing a trusted third party like a bank or a credit card company. Such decentralized transfers are secured by the use of public keys and private keys and different forms of incentive systems, such as proof of work or proof of stake.
Because they do not use third-party intermediaries, cryptocurrency transfers between two transacting parties can be faster than standard money transfers. Flash loans in decentralized finance are an excellent example of such decentralized transfers. These loans, which are processed without backing collateral, can be executed within seconds and are used in trading.
Cryptocurrency investments can generate profits. Cryptocurrency markets have skyrocketed in value over the past decade, at one point reaching almost $2 trillion. As of January 2023, Bitcoin was valued at more than $450 billion in crypto markets.13
The remittance economy is testing one of cryptocurrency's most prominent use cases. Currently, cryptocurrencies such as Bitcoin serve as intermediate currencies to streamline money transfers across borders. Thus, a fiat currency is converted to Bitcoin (or another cryptocurrency), transferred across borders, and subsequently converted to the destination fiat currency. This method streamlines the money transfer process and makes it cheaper.
Though they claim to be an anonymous form of transaction, cryptocurrencies are pseudonymous. They leave a digital trail that agencies like the Federal Bureau of Investigation (FBI) can investigate. This opens up the possibility that governments and authorities (and others) can track financial transactions.
Cryptocurrencies have become a popular tool with criminals for nefarious activities such as money laundering and illicit purchases. The case of Dread Pirate Roberts, who ran a marketplace to sell drugs on the dark web, is already well known. Cryptocurrencies have also become a favorite of hackers who use them for ransomware activities.14
In theory, cryptocurrencies are meant to be decentralized, their wealth distributed between many parties on a blockchain. In reality, ownership is highly concentrated. For example, just 100 addresses hold roughly 12% of circulating bitcoin and total value.15
One of the conceits of cryptocurrencies is that anyone can mine them using a computer with an Internet connection. However, mining popular cryptocurrencies require considerable energy, sometimes as much energy as entire countries consume. The expensive energy costs and the unpredictability of mining have concentrated mining among large firms whose revenues run into billions of dollars. For example, only 98 (2%) of the 4,882 Bitcoin blocks opened from Dec. 29, 2022, to Jan. 29, 2023, were opened by unknown addresses—the other 98% were opened by mining pools.16
Though cryptocurrency blockchains are highly secure, off-chain crypto-related key storage repositories, such as exchanges and wallets, can be hacked. Many cryptocurrency exchanges and wallets have been hacked over the years, sometimes resulting in millions of dollars worth of "coins" stolen.17
Cryptocurrencies traded in public markets suffer from price volatility. For example, Bitcoin has experienced rapid surges and crashes in its value, climbing to nearly $65,000 in November 2021 before dropping to just over $20,000 a year and a half later.18 As a result, many people consider cryptocurrencies to be a short-lived fad or speculative bubble.
How Do You Buy Cryptocurrencies?
You can purchase cryptocurrency from popular crypto exchanges such as Coinbase, apps such as Cash App, or through brokers. Another popular way to invest in cryptocurrencies is through financial derivatives, such as CME's Bitcoin futures, or other instruments, such as Bitcoin trusts and ETFs.
What Is the Point of Cryptocurrency?
Cryptocurrencies are a new paradigm for money. They promise to streamline existing financial architecture to make it faster and cheaper. In addition, their technology and architecture decentralize existing monetary systems and make it possible for transacting parties to exchange value and money independently of intermediary institutions such as banks.
What Are the Most Popular Cryptocurrencies?
Bitcoin is the most popular cryptocurrency, followed by other cryptocurrencies such as Ethereum, Binance Coin, Solana, and Cardano.
Are Cryptocurrencies Securities?
In the past, the SEC has said that Bitcoin and Ethereum, the top two cryptocurrencies by market cap, were not securities. In September 2022, SEC Chair Gary Gensler stated he believes cryptocurrencies are securities and has asked SEC staff to begin working with crypto developers to register their crypto. However, he also clarified that he did not speak on behalf of the SEC; he was only speaking for himself. He encouraged those starting in the crypto space to register their crypto in the spirit of getting ahead because "It's far less costly to do so from the outset."9
The Bottom Line
Cryptocurrencies are digital assets that are secured by cryptography. As a relatively new technology, they are highly speculative, and it is important to understand the risks involved before making an investment.
Learn what you need to know before you invest in a virtual currency
Updated February 04, 2023
Fact checked by
Investopedia / Tara Anand