What a centralized exchange does
A centralized exchange operates the platform, maintains customer accounts, matches or routes orders, and holds assets deposited with it. Depending on the service and country, it may also support local currency deposits, card purchases, conversions, staking, or derivatives.
The exchange is an intermediary. While assets remain in an exchange account, the platform controls the private keys and processes withdrawals under its own systems and policies.
How buying and selling happens
Some beginners use a simple buy interface that quotes a price including a spread or service cost. A trading screen usually connects orders through an order book, where buyers and sellers offer different prices.
- Market orders prioritize immediate execution
- Limit orders specify an acceptable price
- Maker and taker classifications can affect fees
- Available order types differ by platform and product
Risks an account does not remove
Opening an exchange account does not make a crypto asset safe or suitable. Prices can move sharply, withdrawals can be paused, accounts can be restricted, and custodial platforms can experience operational or financial problems.
Before funding an account, confirm local eligibility, enable strong security, understand the withdrawal process, and decide how much exchange custody you are willing to accept.
Common questions
Frequently asked questions
Do I need a crypto exchange to buy crypto?
Not always, but centralized exchanges are a common entry point. Other methods may have different costs, protections, complexity, and regional availability.
Does a crypto exchange own the crypto in my account?
The account may show a balance allocated to you, but the exchange generally controls the private keys until you withdraw to a wallet you control.
Can a crypto exchange guarantee my money?
No. Protections differ by country and provider, and crypto assets can lose value. Do not assume bank-style deposit protection applies.