"Your Funds Are Safe." — FTX, November 2022 (They Were Not.)

When FTX — once the third-largest crypto exchange in the world — collapsed in November 2022, over one million customers discovered that the exchange had been misusing their deposits. Billions of dollars were gone. The founder was later convicted of fraud and sentenced to 25 years in prison.

FTX wasn't a small, sketchy operation. It was endorsed by major celebrities, partnered with sports leagues, and valued at $32 billion. Its collapse is the clearest illustration of the fundamental risk of crypto exchanges: when you keep your crypto on an exchange, you're trusting that company with your money. This guide explains how exchanges work, the different types available, and how to protect yourself when using them.

What Is a Crypto Exchange?

A cryptocurrency exchange is a platform where people can trade cryptocurrencies—either for other cryptocurrencies or for traditional currencies like US dollars. Think of it as a marketplace that connects buyers and sellers.

Exchanges are the most common way people first acquire cryptocurrency. But they come with significant risks that every user needs to understand.

Types of Exchanges

Centralized Exchanges (CEX)

Centralized exchanges are operated by a company that acts as the middleman between buyers and sellers.

How they work:

• You create an account and verify your identity (KYC—Know Your Customer)
• You deposit funds (traditional currency or crypto)
• The exchange matches your buy/sell orders with other users
• The exchange holds your funds in their systems until you withdraw

Examples of well-known centralized exchanges: Coinbase, Kraken, Binance, Gemini

Advantages:

• Easier to use, especially for beginners
• Customer support available (though quality varies)
• Often support traditional currency deposits/withdrawals
• Higher trading volume means better prices

Risks:

• The exchange controls your funds—"not your keys, not your coins"
• Exchanges can freeze your account
• They can be hacked (and have been, many times)
• They can go bankrupt (FTX collapsed in 2022, and customers lost billions)
• Regulatory changes can restrict access

Decentralized Exchanges (DEX)

Decentralized exchanges operate without a central company. They use smart contracts (automated code on a blockchain) to facilitate trades directly between users.

How they work:

• You connect your own wallet directly
• No account creation or identity verification required
• Trades happen through automated smart contracts
• You maintain control of your funds until the moment of trade

Examples: Uniswap, SushiSwap, PancakeSwap

Advantages:

• You keep control of your funds
• No identity verification required
• Available to anyone with an internet connection
• Transparent—all code and transactions are publicly viewable

Risks:

• More complex to use
• No customer support if something goes wrong
• Smart contract bugs can lead to loss of funds
• Vulnerable to front-running and MEV (Maximal Extractable Value) attacks
• Often lower trading volume, which can mean worse prices
• Scam tokens are common on DEXs

How Centralized Exchanges Make Money

Understanding how exchanges generate revenue helps you understand their incentives:

• Trading fees: A percentage of each trade (typically 0.1%–1.5%)
• Withdrawal fees: Charges when you move crypto off the exchange
• Spread: The difference between buy and sell prices
• Listing fees: Charging projects to list their tokens
• Lending/staking services: Offering yield products (which carry additional risk)
• Premium features: Advanced trading tools, faster support

Key Risks of Using Exchanges

1. Exchange Hacks

Crypto exchanges are high-value targets for hackers. Major hacks have resulted in hundreds of millions of dollars in losses:

• Exchanges hold large amounts of cryptocurrency in one place
• Despite security measures, breaches have happened repeatedly
• Some exchanges have insurance funds, but coverage may not be complete

2. Exchange Insolvency

Exchanges can go bankrupt, and your funds may not be protected:

• Unlike bank deposits, crypto on an exchange typically isn't insured by government programs
• In bankruptcy proceedings, customers may be treated as unsecured creditors
• Recovery of funds can take years and may be partial at best

3. Account Freezes

Exchanges can freeze your account for various reasons:

• Suspicious activity flags (sometimes triggered by legitimate transactions)
• Regulatory compliance requirements
• Legal disputes or government orders
• Technical issues

4. Regulatory Risk

• Exchanges may be forced to stop serving certain countries or regions
• New regulations can change how exchanges operate
• Some exchanges operate in regulatory gray areas

Safety Practices When Using Exchanges

If you choose to use an exchange, these practices can reduce (but not eliminate) risk:

Account security:

• Use a unique, strong password
• Enable authenticator-app-based 2FA (not SMS)—see our 2FA guide
• Use a dedicated email address for exchange accounts
• Be vigilant about phishing attempts

Fund management:

• Only keep on an exchange what you're actively trading
• Withdraw funds you're not trading to a wallet you control
• Start with small amounts to learn how the platform works
• Verify withdrawal addresses carefully—see our safe transaction habits guide

Due diligence:

• Research the exchange's history and reputation
• Check if the exchange is registered with relevant regulators
• Look for proof of reserves or audit reports
• Be wary of exchanges offering unusually high returns or bonuses

Fees to Watch For

Exchange fees can significantly impact your costs. Be aware of:

| Fee Type | What It Is | Typical Range | |----------|-----------|---------------| | Trading fee | Charged per trade | 0.1%–1.5% | | Deposit fee | Charged when adding funds | Often free for crypto; varies for bank transfers | | Withdrawal fee | Charged when moving crypto out | Varies by cryptocurrency and network | | Conversion fee | Charged for instant buy/sell | 1%–3% (often hidden in the price) | | Inactivity fee | Charged for dormant accounts | Some exchanges charge this |

For a deeper dive into all crypto-related fees, see our Fees & Transfers guide.

Red Flags: When to Avoid an Exchange

Avoid exchanges that:

• Are not registered or regulated in any jurisdiction
• Guarantee returns or profits
• Pressure you to deposit quickly with "limited time" bonuses
• Have no verifiable team or company information
• Don't allow withdrawals or make withdrawal processes unreasonably difficult
• Offer returns that seem too good to be true
• Have widespread unresolved complaints about frozen funds

The Bottom Line

Crypto exchanges are the primary gateway for buying and selling cryptocurrency, but they introduce significant risks—from hacks and insolvency to account freezes and regulatory changes. Understanding how different exchange types work and practicing strong security habits can help you navigate these risks more carefully.

No exchange is risk-free. Whether you use a centralized or decentralized platform, take time to understand the specific risks involved and never keep more funds on an exchange than you can afford to lose.

Frequently Asked Questions

Frequently Asked Questions

Is my cryptocurrency safe on an exchange?

What is the difference between a centralized and decentralized exchange?

How do I choose a trustworthy crypto exchange?

What should I do if an exchange freezes my account?