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what is cryptocurrency?

Cryptocurrencies let you buy goods and services, or you can trade them for profit. Here's more about what cryptocurrency is, how to buy it and how to protect yourself.
Feb 5, 2022

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1. Cryptocurrency definition

Cryptocurrencies are digital assets created using computer networking software that enables secure trading and ownership. 

Bitcoin and most other cryptocurrencies are supported by a technology known as blockchain, which maintains a tamper-resistant record of transactions and keeps track of who owns what. Public blockchains are usually decentralized, which means they operate without a central authority such as a bank or government.

The term cryptocurrencies comes from the cryptographic processes that developers have put in place to guard against fraud. These innovations addressed a problem faced by previous efforts to create purely digital currencies: how to prevent people from making copies of their holdings and attempting to spend them twice.

Individual units of cryptocurrencies can be referred to as coins or tokens, depending on how they are used. Some are intended to be units of exchange for goods and services, others are stores of value, and some are mostly designed to help run computer networks that carry out more complex financial transactions.

One common way cryptocurrencies are created is through a process known as mining, which is used by Bitcoin. Mining can be an energy-intensive process in which computers solve complex puzzles in order to verify the authenticity of transactions on the network. As a reward, the owners of those computers can receive newly created cryptocurrency. Other cryptocurrencies use different methods to create and distribute tokens, and many have a significantly lighter environmental impact.

For most people, the easiest way to get cryptocurrency is to buy it, either from an exchange or another user.

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2. How to buy cryptocurrency

Buying cryptocurrencies involves four basic steps:

1. Decide where to buy it

There are many ways to buy cryptocurrency, though the most accessible method for beginners is likely to be a centralized exchange. Centralized exchanges act as a third party overseeing transactions to give customers confidence that they are getting what they pay for. These exchanges typically sell crypto at market rates, and they make money on fees for various aspects of their services.

If you're more accustomed to traditional brokerage accounts, there are a few online brokers that offer access to cryptocurrencies as well as stocks. Of the online brokers reviewed by NerdWallet, these include Robinhood, Webull, SoFi Active Investing and TradeStation. If you're looking for an exchange that operates solely within the cryptocurrency world, look for pure-play crypto exchanges. These platforms, such as Coinbase, Gemini and Kraken, won't give you access to core assets like stocks and bonds, but they typically have a much better selection of cryptocurrencies, and more on-platform crypto storage options.

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Though centralized exchanges are relatively easy to use, they also can be an attractive target for hackers given the volume of crypto that flows through them.

For more advanced users, there are decentralized exchanges whose fees can be lower than those charged by centralized platforms. Those can be more difficult to use and demand more technical know-how, but they may also offer some security benefits because there is no single target for a cyberattack. Cryptocurrencies can also be traded through peer-to-peer transactions.

2. Choose how you'll pay

While there are thousands of cryptocurrencies being traded around the world, you'll find that the most popular options are widely available for purchase in fiat currencies such as the U.S. dollar. If you're a first-time buyer, you'll very likely have to use regular money to buy cryptocurrency.

If you're a more experienced investor, you may want to trade some of your existing crypto holdings for another type of cryptocurrency — for instance Bitcoin for Ethereum.

3. Add value to your account

Depending on how you choose to pay, you may have to fund your account before purchasing any crypto. If you're using fiat currency, most exchanges allow debit and bank transfers. Some also allow you to fund a purchase with your credit card, though this can be a risky move with a volatile asset like cryptocurrency because interest costs can deepen your losses if your investments decline in value.

If you already own cryptocurrency, you can transfer it into your account from a digital wallet or another platform, then use it to trade. Just be sure to verify that your crypto exchange allows trading between the assets you're looking at. Not all cryptocurrencies can be directly traded for one another, and some platforms have more trading pairs than others.

Another thing to note is that exchanges’ fees vary depending on what you're buying and how you're buying it, so review these details carefully.

4. Select a cryptocurrency

There are many options for cryptocurrency investors, though there are none that are likely to be right for everyone. Before you buy, ask yourself what your goals are for this investment. Are you hoping it will increase in value? Are you interested in carrying out transactions using cryptocurrency? Are you interested in using the underlying technology via decentralized apps? These may help you make your decision.

NerdWallet has created guides to some widely circulated cryptocurrencies, including Bitcoin and some Bitcoin alternatives:

  • Bitcoin is the first and most valuable cryptocurrency.

  • Ethereum is commonly used to carry out financial transactions more complex than those supported by Bitcoin.

  • Cardano is a competitor to Ethereum led by one of its co-founders.

  • Solana is another competitor to Ethereum that emphasizes speed and cost-effectiveness.

  • Dogecoin began as a joke but has grown to be among the most valuable cryptocurrencies.

  • Stablecoins are a class of cryptocurrencies whose values are designed to stay stable relative to real-world assets such as the dollar.




5. Pros and cons of cryptocurrency

Cryptocurrency inspires passionate opinions across the spectrum of investors. Here are a few reasons that some people believe it is a transformational technology, while others worry it's a fad.

Cryptocurrency pros

  • Supporters see cryptocurrencies such as Bitcoin as the currency of the future and are racing to buy them now, presumably before they become more valuable.

  • Some supporters like the fact that cryptocurrency removes central banks from managing the money supply since over time these banks tend to reduce the value of money via inflation.

  • Other advocates like the blockchain technology behind cryptocurrencies, because it’s a decentralized processing and recording system and can be more secure than traditional payment systems.

  • Some speculators like cryptocurrencies because they’re going up in value and have no interest in the currencies’ long-term acceptance as a way to move money.

  • Some cryptocurrencies offer their owners the opportunity to earn passive income through a process called staking. Crypto staking involves using your cryptocurrencies to help verify transactions on a blockchain protocol. Though staking has its risks, it can allow you to grow your crypto holdings without buying more.

Cryptocurrency cons

  • Many cryptocurrency projects are untested, and blockchain technology in general has yet to gain wide adoption. If the underlying idea behind cryptocurrency does not reach its potential, long-term investors may never see the returns they hoped for.

  • For shorter-term crypto investors, there are other risks. Its prices tend to change rapidly, and while that means that many people have made money quickly by buying in at the right time, many others have lost money by doing so just before a crypto crash.

  • Those wild shifts in value may also cut against the basic ideas behind the projects that cryptocurrencies were created to support. For example, people may be less likely to use Bitcoin as a payment system if they are not sure what it will be worth the next day.

  • Governments around the world have not yet fully reckoned with how to handle cryptocurrency, so regulatory changes and crackdowns have the potential to affect the market in unpredictable ways.


6. Crypto investing guidelines

Cryptocurrency is a relatively risky investment, no matter which way you slice it. Generally speaking, high-risk investments should make up a small part of your overall portfolio — one common guideline is no more than 10%. You may want to look first to shore up your retirement savings, pay off debt or invest in less-volatile funds made up of stocks and bonds.

There are other ways to manage risk within your crypto portfolio, such as by diversifying the range of cryptocurrencies that you buy. Crypto assets may rise and fall at different degrees, and over different time periods, so by investing in several different products you can insulate yourself — to some degree — from losses in one of your holdings.

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Perhaps the most important thing when investing in anything is to do your homework. This is particularly important when it comes to cryptocurrencies, which are often linked to a specific technological product that is being developed or rolled out. When you buy a stock, it is linked to a company that is subject to well-defined financial reporting requirements, which can give you a sense of its prospects.

Cryptocurrencies, on the other hand, are more loosely regulated in the U.S., so discerning which projects are viable can be even more challenging. If you have a financial advisor who is familiar with cryptocurrency, it may be worth asking for input.

For beginning investors, it can also be worthwhile to examine how widely a cryptocurrency is being used. Most reputable crypto projects have publicly available metrics showing data such as how many transactions are being carried out on their platforms. If use of a cryptocurrency is growing, that may be a sign that it is establishing itself in the market. Cryptocurrencies also generally make "white papers" available to explain how they'll work and how they intend to distribute tokens.

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If you're looking to invest in less established crypto products, here are some additional questions to consider:

  • Who’s heading the project? An identifiable and well-known leader is a positive sign.

  • Are there other major investors who are investing in it? It’s a good sign if other well-known investors want a piece of the currency.

  • Will you own a portion in the company or just currency or tokens? This distinction is important. Being a part owner means you get to participate in its earnings (you’re an owner), while buying tokens simply means you're entitled to use them, like chips in a casino.

  • Is the currency already developed, or is the company looking to raise money to develop it? The further along the product, the less risky it is.

It can take a lot of work to comb through a prospectus; the more detail it has, the better your chances it’s legitimate. But even legitimacy doesn’t mean the currency will succeed. That’s an entirely separate question, and that requires a lot of market savvy. Be sure to consider how to protect yourself from fraudsters who see cryptocurrencies as an opportunity to bilk investors.

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7. Legality of cryptocurrencies

There’s no question that cryptocurrencies are legal in the U.S., though China has essentially banned their use, and ultimately whether they’re legal depends on each individual country.

The question of whether cryptocurrencies are allowed, however, is only one part of the legal question. Other things to consider include how crypto is taxed and what you can buy with cryptocurrency.

  • Legal tender: You might call them cryptocurrencies, but they differ from traditional currencies in one important way: there's no requirement in most places that they be accepted as "legal tender." The U.S. dollar, by contrast, must be accepted for "all debts, public and private." Countries around the world are taking various approaches to cryptocurrency. El Salvador in 2021 became the first country to adopt Bitcoin as legal tender. Meanwhile, China is developing its own digital currency. For now, in the U.S., what you can buy with cryptocurrency depends on the preferences of the seller.

  • Crypto taxes: Again, the term "currency" is a bit of a red herring when it comes to taxes in the U.S. Cryptocurrencies are taxed as property, rather than currency. That means that when you sell them, you'll pay tax on the capital gains, or the difference between the price of the purchase and sale. And if you're given crypto as payment — or as a reward for an activity such as mining — 

Thanks for reading ๐Ÿ™๐Ÿป hope everything is clear now.

Comments

  1. Can you please tell which apps are good for investment in crypto

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