Bourse Centralisée (CEX)
Une plateforme d'échange de cryptomonnaies gérée par une entreprise qui détient les fonds en dépôt et correspond les ordres via un carnet central.
Principales CEX : Binance, Coinbase, Kraken, OKX. Revenus : frais de trading (0,1–0,5%), spread, frais de listing. CEX vs DEX : CEX — haute liquidité, support fiat, mais risque de garde.
graph LR
Center["Bourse Centralisée (CEX)"]:::main
Rel_cex["cex"]:::related -.-> Center
click Rel_cex "/terms/cex"
Rel_proof_of_stake["proof-of-stake"]:::related -.-> Center
click Rel_proof_of_stake "/terms/proof-of-stake"
Rel_singularitynet["singularitynet"]:::related -.-> Center
click Rel_singularitynet "/terms/singularitynet"
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🧒 Explique-moi comme si j'avais 5 ans
Une [CEX](/fr/terms/cex), c'est comme une banque et une bourse combinées, mais pour la crypto. Vous déposez votre [Bitcoin](/fr/terms/bitcoin) chez eux. Si la bourse fait faillite, votre argent peut disparaître — exactement ce qui s'est passé avec FTX en 2022.
🤓 Expert Deep Dive
❓ Questions fréquentes
What is the main risk of using a CEX?
Custodial risk: you do not control your private keys. If the exchange is hacked, goes bankrupt (like FTX in 2022), or freezes withdrawals, you may lose access to your funds.
What is Proof-of-Reserves?
A Proof-of-Reserves (PoR) is a cryptographic attestation that a CEX actually holds the assets it claims to hold for users. After FTX collapsed, it became a standard practice for exchanges to publish Merkle-tree-based PoR reports. However, PoR only proves assets, not liabilities.
What is the difference between a maker and a taker on a CEX?
A market maker places a limit order that sits on the order book, adding liquidity. A taker executes against an existing order, removing liquidity. Makers typically pay lower fees than takers.