Payments on the Shotgun platform are processed through the Stripe payment solution. Thus, 3D secure is activated in a dynamic version, which means that the bank verification request is activated only if the payment appears suspicious (origin of the payment, number of times the card was used online, etc.). This does not mean that your payment is not safe, or that you can be hacked.
However, if you have any doubts, contact us through the web widget or on the Help Center in the app.