Today I charged my old smartphone (which is potentially infected with malware), using a standard USB charger. Afterwards, I used the same charger (and cable) to charge my new smartphone.
The USB charger needs a cable that has a USB connector on the one side (plugged into the carger) and a Micro-USB 2.0 connector on the other side (plugged into the smartphone). (I used the same charger and cable for both smartphones.)
Could my new smartphone now be infected with malware?
I think I used the following charger:
A similar model is this:
https://www.samsung.com/de/mobile-accessories/travel-adapter-micro-usb-ta20-ep-ta20eweugww/
