嗯，存在交易所，和存在銀行、網絡等中介一样，容易被盜走。

The goal is to create a technology that — unlike your deposits at a bank or FinTech company — when you own a crypto asset in your wallet, you’re the ONLY one who controls it.

There are absolutely no intermediaries between you and your money.

https://weisscrypto.com/en/article/b...tal-currencies



存在硬件錢包裏沒事，ledger這樣的也有數百萬用戶了，還拿到三星投資。https://www.ledger.com

加密貨幣用私匙證明賬戶，現在簡化成助記詞12-24個，就可以在任何地方用錢包app或硬件錢包收付款。

所以助記詞不泄露，軟件硬件安全，和保存現金壹樣不會丟失和被盜被搶。