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I have always heard that the 2fa verification really depended on the vendor actually doing that auth so I always scrape the 3 verification number (what is it for anyways ?) at the back of my card. It's just 3 numbers after all.


It's mandatory by law, and it's additionally to the 3 numbers at the back of the card. Usually it works by confirming or denying the transaction on the App of your Issuing bank


None of the eu amazons have 2fa on their card transactions.


Why do they say otherwise on their own website?

https://www.amazon.de/b?ie=UTF8&node=17666138031


Well I have bo idea. All I know is when I purchase on either .de, .co.uk or .ie the transaction goes through immediately. I have 3D secure enabled.

The text on that link of yours is sneaky though:

"...you MAY be asked to..." (Emphasis mine)


Because you can add them to a "That Store is safe" list, and you won't get asked again. You probably did this at some point


They recently enabled 3DS for business accounts, on customer ones it’s indeed still disabled




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