Sent crypto to Bitmart last night, woke up to hear they are shutting down, amount not visible even though confirmed

I sent some crypto to BitMart last night and woke up today to hear they’re shutting down. The transaction is confirmed on-chain, but the amount still isn’t visible in my account.

Situations like this are exactly why centralized exchanges still make a lot of people nervous. You can do everything right: send to the correct address, wait for confirmations, see the transaction completed, and yet your funds are still dependent on a company’s internal systems, decisions, and solvency.

Crypto was built around the idea of owning your own assets, but the moment you leave coins on an exchange, you’re trusting a third party again. The exchange controls access, the interface, withdrawals, and ultimately whether you can actually use your funds.

Hopefully this gets resolved, but it’s a good reminder that “not your keys, not your coins” exists for a reason.

Has anyone else experienced delayed balances or withdrawal issues with BitMart or other exchanges during shutdowns or crises? How do you decide what you’re comfortable keeping on an exchange?