It doesn't need a connection to talk to the bank. More then likely it uses something like a RSA token, which generates a pretty secure code, based on the time.
You don't need to reenter the card for online subscriptions every month. Venders and companies do not store the CCV code, per regulations. It is a simple form of verification code.
Gifted_Gengar on September 19th, 2019 at 18:03 UTC »
What kind of card ?
SirKazum on September 19th, 2019 at 20:19 UTC »
Neat! Could you post a livestream of your card so we can see all those cool numbers popping up in real time?
XtremeOwnage on September 19th, 2019 at 22:06 UTC »
Lots of misinformation here.
It doesn't need a connection to talk to the bank. More then likely it uses something like a RSA token, which generates a pretty secure code, based on the time.
You don't need to reenter the card for online subscriptions every month. Venders and companies do not store the CCV code, per regulations. It is a simple form of verification code.