I decided to use a banking application (provided by german postbank), but ONLY to SEE my account transactions, so I do NOT want to make any new transactions, just VIEW them.
Im always logging out of my account. But still I'm wondering how safe this use-case of mine is. Imagine my phone gets stolen >> What is cached on my phone by this app?
Is it like I would have never logged in, i.e. no cached data of my downloaded transactions exist on my phone? Or is it that my transactions will get downloaded and cached in a (maybe simple unencrypted?) database on my phone and "everyone" could access it?
How could I check this myself? Thanks in advance!