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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. Most cryptocurrencies exist on decentralized networks using 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.

Key Takeaways

  • 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.

Investopedia / Tara Anand


Understanding Cryptocurrency

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.

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 before being confirmed, making it almost impossible to forge transaction histories. 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 using blockchain technology to lower transaction costs by streamlining payment processing.

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 validating transactions and opening blocks. When the blockchain transitioned to proof-of-stake in September 2022, ether (ETH) inherited an additional duty as the blockchain’s staking mechanism. The XRP Ledger Foundation’s XRP is designed for financial institutions to facilitate transfers between different geographies.

Because there are so many cryptocurrencies on the market, it’s important to understand the types. Knowing whether the coin you’re looking at has a purpose can help you decide whether it is worth investing in—a cryptocurrency with a purpose is likely to be less risky than one that doesn’t have a use.

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 Millennium Sapphire.

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.

How to Buy Cryptocurrency

If you want to use cryptocurrency to buy products and services, you will need to visit a cryptocurrency exchange. These are businesses that allow you to buy or sell cryptocurrencies from other users at the current market price, similar to a stock. After buying the coins, you will need to transfer them to a digital wallet or use a third-party service like Coinbase to store your coins.

If you only want to buy cryptocurrency as an investment, you may be able to do so through your brokerage. For example, Robinhood allows users to invest in bitcoin and other cryptocurrencies, although you cannot withdraw them from the platform for purchases. In addition, there are several crypto ETFs that provide exposure to the crypto asset class without requiring the investors to maintain their own wallets. For instance, as of May 2024, investors may choose to hold Bitcoin futures ETF shares. The SEC has also approved the listing and trading of Ether spot shares.

Is Cryptocurrency Legal?

Fiat currencies derive their authority from the government or monetary authorities. For example, the U.S. dollar is recognized and issued by the government as the official currency of the United States and is “legal tender.”

But cryptocurrencies are not issued 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 primarily functioned outside most existing financial infrastructure.

In the U.S.

The legal status of cryptocurrencies creates 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.

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.

In the United States in July 2023, courts ruled that cryptocurrencies are considered securities when purchased by institutional buyers but not by retail investors purchased on exchanges.

Enthusiasts called it a victory for crypto; however, crypto exchanges are regulated by the SEC, as are coin offerings or sales to institutional investors. So, crypto is legal in the U.S., but regulatory agencies are slowly gaining ground in the industry.

In Asia

Japan’s Payment Services Act defines Bitcoin as legal property. Cryptocurrency exchanges operating in the country are required to collect information about the customer and details relating to the wire transfer.

China has banned cryptocurrency exchanges, transactions, and mining within its borders, but has a Central Bank Digital Currency (CBDC).

India was reported to be formulating a framework for cryptocurrencies, but until it is enacted, crypto is not yet illegal. Exchanges are free to offer cryptocurrencies.

In Europe

Cryptocurrencies are legal in the European Union. Derivatives and other products that use cryptocurrencies must qualify as “financial instruments.” In June 2023, the European Commission’s Markets in Crypto-Assets (MiCA) regulation went…



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