This method of tampering with the front-end display is a bit tricky.

Once again, it is explained that security is based on the lower limit of the soft ribs, which is similar to the principle of the wooden barrel. If the front-end tampering is combined with some sociological attacks, multi-signature and hardware wallets will be useless.

Once again, remind you: if the amount of funds in cryptocurrency is large, or even if the absolute value is not high but the proportion of funds to your total assets is high (you cannot accept losing), you must be willing to spend money and time on security, otherwise you will spend more money and more time sooner or later.