Bug
The bug is in the withdraw function:
**wallet_info.lamports.borrow_mut() -= amount;
**destination_info.lamports.borrow_mut() += amount;
can overflow/underflow for large amount
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The bug is in the withdraw function:
**wallet_info.lamports.borrow_mut() -= amount;
**destination_info.lamports.borrow_mut() += amount;
can overflow/underflow for large amount