What could go wrong if you copy an address directly from your transfer history when making a payment?
Once an on-chain transfer is confirmed, it can't be reversed. Assets sent to a similar-looking address are basically impossible to recover.
Attackers often send you a tiny amount of a token from a fake address to make it appear in your transaction history.
The first page of my study notes says: Understand first, then place an order.
It's safer to keep large amounts of assets in a wallet you control offline, and use small amounts for everyday transactions.
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This isn't financial advice. Make your own decisions when taking action.