"The Cardholder must not disclose the assigned PIN, nor any personally chosen PIN (see Item 17.8.), nor the Secure Code to anyone, not even to employees of card complete. The Cardholder is responsible for ensuring strict secrecy concerning all card security details – PIN, Secure Code and mobileTANs received on his/her telephone (to be used for authenticating a ViS/MCID transaction and valid for a maximum of 5 minutes afterreceipt) – and must take all reasonable precautions to ensure that they cannot be discovered by others. The Cardholder must refrain from writing them down on the card, keeping them in the same place as the card, telling them to anyone, or acting in any other way that would allow others to discover these details."
Hence, if you have a credit card, you must hide something. A bank, for example, would likely benefit from requiring a secure device for transactions as part of their conditions of use, otherwise it is unclear how exactly we can satisfy this contract as customers, and who is liable in case of problems. A common way to ensure such technical requirements is to refer to a technical standard that the device must conform to.
As a closely related example, here is a recent Austrian law, the Registrierkassensicherheitsverordnung (regulation for security of cash registers):
https://www.ris.bka.gv.at/GeltendeFassung.wxe?Abfrage=Bundes...
Note to how many technical standards the law refers to in order to ensure the security of these devices, including AES-256, SHA-256 etc. These technical standards ensure that multiple vendors can participate in bidding and all adhere to the required specifications regarding security etc.
Most people really don't get how much processing is happening and how much of it is a mechanical turk by the way of minimum wage contractors.
A problem for places like USA is that the legislators are unwilling to regulate against the interest of big companies unless the needle of public opinion is very, very, very strong to the point of it becoming the primary issue (which IMHO is not going to happen, privacy is important but there are and will be other priorities as well) - but if we're simply looking at the preferences of the population, then the public opinion is already there.
How do we move the needle of public opinion?