At least for credit card activities, you can use.
If you want to use secure WiFi, you can use universal WiFi.
Universal WiFi can protect Internet security functions, intercept Trojans and isolate fraudulent websites.
I also put an end to the equipment that rubs the internet and protect the online function in real time. I bought it and used it for two months. It works very well.
Easy to use, easy to carry, as long as there is a computer and a network, you can use WiFi to surf the Internet.
I hope it will be helpful to you and I hope it will be adopted.