Fees alone miss a lot. What holding at an exchange means, local currency deposits, the many kinds of fees, account security, Korean rules and a checklist.
A balance in an exchange account is not an asset recorded as yours on a blockchain; it is a number in the exchange's internal ledger. If the exchange becomes unable to pay, the figure on screen does not help. This has happened repeatedly. It is why where you hold matters more than a fraction of a percent in fees.
Depositing and withdrawing local currency directly requires the exchange to provide a bank-linked verified account. Exchanges without that arrangement cannot take local currency, so assets must be moved by another route. That adds fees and time, and choosing the wrong network loses the funds.
Looking only at the advertised trading fee misses the real cost, which comes in layers.
Exchanges with thin volume fill away from your intended price or show wide spreads. Supported networks differ by asset, and deposits or withdrawals are sometimes suspended without notice. When a delisting is announced you usually have a fixed window to sell or move, so keeping a channel open to receive notices is worthwhile.
An exchange account is hard to protect with a password alone. Enable two-factor authentication and, where possible, use an authenticator application or a hardware key rather than text messages. If the exchange offers a whitelist that restricts withdrawals to pre-registered addresses, turning it on helps. Losing your recovery method makes identity verification a long process.
Exchanges in Korea that support won trading must be virtual asset service providers registered with the Korea Financial Intelligence Unit. Under the Virtual Asset User Protection Act, in force since 19 July 2024, they must keep users' won deposits with a bank, separately managed, and pass part of the investment income back as a deposit fee; keep at least 80% of the economic value of users' coins in offline cold wallets; and hold insurance or reserves for the rest. They also may not freeze deposits or withdrawals at will without a reason set out in the law. When you send coins worth 1 million won or more to another provider, sender and recipient information travels with the transfer (the travel rule). Even so, these rules don't protect you from falling prices, and coins are not covered by deposit insurance like bank deposits. Details can change, so check the financial authorities' guidance.
Foreign exchanges are used for their wider range of coins and products, but they bring risks that domestic exchanges don't. A foreign operator not registered in Korea that serves Korean users may run into problems under Korean law, and if something goes wrong it's hard to get help through Korean institutions. Since you can't deposit won directly, you have to buy coins on a Korean exchange and send them over, adding transfer fees and the risk of choosing the wrong network. Holdings on foreign exchanges may also need separate attention for reporting duties and tax calculations. Check these conditions before convenience.
When choosing an exchange, working through these items in order is more practical than going by ads or promotions: whether it's a registered business in Korea, which bank handles won deposits and withdrawals, whether the coins you want to trade have enough volume, what trading and withdrawal fees are, whether it supports security features like two-factor authentication and withdrawal address whitelisting, and how it announces suspensions and outages. Sign-up bonuses are temporary, but moving exchanges costs time and money. Spreading assets across exchanges as needed, rather than keeping everything in one, also reduces risk. This guide recommends no particular exchange.
Check it live