This is more an issue with your bank being too lazy to do 2-factor authentication properly than the network itself, which supports authentication mode for almos

This is more an issue with your bank being too lazy to do 2-factor authentication properly than the network itself, which supports authentication mode for almost all channels. My company provides tools for testing payment terminals/networks and I always make sure I use my actual debit card when I demonstrate our tools. My bank will not authorize transactions without proper authentication, so it really doesn't matter if people see my PAN/expiry date. Even using my credit card online requires proper authentication when the site supports 3D Secure.