Frequently Asked Questions

Cryptocurrency is digital money that isn't controlled by any government or bank. It exists because some people wanted a way to send money anywhere in the world without needing a bank's permission — and without anyone being able to freeze accounts or print unlimited new money.

No, just like you don't need to know how the internet works to browse websites. You can buy, hold, and send crypto without understanding the technical details. But knowing the basics helps you make smarter decisions.

In most countries, yes — including the US, UK, EU, Canada, and Australia. A small number of countries have restricted or banned it. Always check the rules where you live.

You can start with as little as $10 on most exchanges. You don't need to buy a whole Bitcoin — you can buy a tiny fraction. Starting small while you learn is perfectly sensible.

A coin (like Bitcoin or Ethereum) has its own blockchain. A token lives on someone else's blockchain. Most of the thousands of cryptocurrencies out there are tokens built on Ethereum.

That depends on your financial situation, goals, and risk tolerance. Crypto can go up dramatically — but also down dramatically. Never invest money you can't afford to lose, and don't put all your eggs in one basket.

Coinbase is the easiest for beginners in the US. Kraken is another solid option with lower fees. The most important things: pick an exchange that's licensed in your country, has a good security record, and is easy for you to use.

Fees vary by exchange and payment method. Bank transfers are cheapest (often under 1%). Debit/credit cards are most expensive (2–4%). Some exchanges also charge a spread on top of their stated fee.

Yes — major exchanges operate 24/7. Unlike the stock market, crypto never closes. You can sell at 3am on a Sunday if you want.

In most cases, it's gone. Blockchain transactions are irreversible. Always double-check the address before confirming — copy-paste rather than typing, and verify the first and last few characters.

A market order buys immediately at whatever the current price is. A limit order lets you set the price you're willing to pay — it only executes if the price reaches that level.

In most countries, selling crypto for more than you paid is a taxable gain. Selling at a loss may offset other gains. The rules vary by country — consult a tax professional for your situation.

Your seed phrase is a list of 12 or 24 words that is the master key to your wallet. Write it on paper, store it somewhere safe, and never — ever — type it into any website or tell anyone. This is the most important security step in crypto.

Two-factor authentication (2FA) adds a second step when you log in — usually a code from your phone. Yes, you absolutely need it on every exchange account. Use an authenticator app, not SMS.

The most common: fake support staff asking for your seed phrase, investment schemes promising guaranteed returns, fake giveaways (Elon Musk isn't doubling your Bitcoin), and phishing sites that look exactly like real exchanges.

For small amounts you plan to trade soon, yes. For significant savings, no. Exchanges can be hacked or go bankrupt — if that happens, you may lose your funds. The saying in crypto: "Not your keys, not your coins."

Not for small amounts or when you're just starting out. But once you have more than a few hundred dollars in crypto, a hardware wallet is a worthwhile investment. They cost $50–$150 and can protect thousands.

Act fast: if your exchange account is compromised, contact support immediately and try to secure your account. If your wallet is compromised, move any remaining funds to a new wallet immediately. The longer you wait, the more they can take.

Three things: every transaction is secured by cryptography, every computer in the network has a copy of the records (so there's nothing to hack centrally), and changing old records would require redoing an impossible amount of computational work.

Ethereum transaction fees (gas) go up when the network is busy — like surge pricing. If lots of people are trying to transact at once (during a popular NFT launch, for example), fees can spike dramatically. Layer 2 networks like Arbitrum offer much lower fees.

A smart contract is a program that lives on the blockchain. It runs automatically when conditions are met — no company, lawyer, or middleman needed. Most DeFi apps are built from smart contracts.

Proof of Work (used by Bitcoin) requires computers to do hard math to earn the right to add transactions. Proof of Stake (used by Ethereum) requires validators to lock up their own crypto as a guarantee. PoS uses much less energy.

No. Once a transaction has enough confirmations on a public blockchain, it's permanent. This is a feature, not a bug — it's what makes the record trustworthy. But it also means mistakes are permanent.

No. Most crypto transactions — including Bitcoin — are pseudonymous, not anonymous. Every transaction is publicly visible on the blockchain. With the right tools, transactions can often be traced back to real identities, especially if you used a KYC exchange.

No. Studies consistently show the vast majority of crypto transactions are legitimate. Yes, criminals use crypto — but they also use cash, banks, and shell companies. Crypto's transparent blockchain often makes financial crime easier to trace than cash.

Governments can make it difficult — restricting exchanges, banning payments, making it illegal. China has done this. But completely stopping people from using crypto is very hard, because the network runs on thousands of computers worldwide and has no off switch.

Bitcoin does use a significant amount of electricity. The debate is about what kind of electricity it uses — an increasing portion comes from renewable sources. The environmental case is more nuanced than headlines suggest, but legitimate concerns exist.

Probably not entirely, at least not soon. Crypto has real advantages but also real limitations for everyday payments — fees, speed, complexity, and price volatility make it impractical for buying groceries. The more realistic near-term picture is crypto and traditional finance coexisting and increasingly overlapping.

If you have your seed phrase, yes — you can restore your wallet on any compatible app. If you've lost both your password and your seed phrase, your crypto is almost certainly gone forever. This is why backing up your seed phrase is so critical.

That question gets asked at every price level — including by people who asked it when Bitcoin was $1, $100, $1,000, and $10,000. Nobody knows. What's true is that crypto remains volatile and speculative, the ecosystem is still developing, and the same principles apply at any price: only invest what you can afford to lose, invest gradually, and don't make decisions based on fear or hype.