It is not just about not having any funds in your wallet or not leaving any funds in your banking app. It is a fact that the malware can steal private information from your device through your screen. i don't know how you can survive effectively without once in a while having some assets in an exchange maybe for a while or even making use of banking apps for regular transaction but for the regular person, in one way or the other, you can't avoid having some funds that is linked to your device, hence the need to be cautious of this kind of malware.

I have always been a fan of downloading keyboards that allow me to store some text on my clipboard as reusable text. It is just for the ease and convenience that comes with it, but with this information, I guess it calls for more caution on the kind of extension one downloads.