I don't use public chargers, and I use USB condoms for charging my devices even with chargers I own, because basically all the charging devices are made in untrustable supply chains. I thought this was common knowledge, and basically what everyone is doing. Wireless charging helps a lot with this, and I now prefer wireless charging whenever possible. The only devices I connect my devices to using USB are computers I control, I don't cross-contaminate between computers (e.g. anything plugged into my work laptop will never be plugged into a personal system, and vice versa). This is just basic hardware op-sec with USB.
I have one of these. I like that I can look in it and see that it has no data pins
> Wireless
I know you meant charging, but for data, with some of the spy cables out there with embedded chips and wireless access, it's ironic that wireless is in some ways more secure.
The wireless charging port is an specialized one. That's why it's more secure. The wireless data transfer options vary from "it's broken, forget about it" to actually quite secure, but the charging isn't done through them.
When people decided to use USB for everything, well, they had to make USB support every use case.
Not all usb condoms show the connections. I got one from a well-known vendor at a conference. Seems like an easier attack vector to create and sell malware infested usb condoms…
