If any of you are on wifi, also note that an unsecured connection (or even a badly secured one) can also be compromised, which can lead to a CC hijacking.

...and all of us here in this thread have an unsecured connection? Come on! I for example are not shopping through Wifi, I have a closed network, firewall and whitelist (only devices I know are allowed in my network).

All the statements you can read in this thread point to major security issue here at Rendo.