by authorised user, I mean I have my mother set up on my visa account so that she has a credit card to use if required, but it's on my own account.
I never send data like this by email myself but she wasn't aware of the danger of doing this. I will check my statement alright but it may be too late by the time I get that. Just wondering if someone did manage to get my details and made purchases using my card, would I be liable for them? And does it remain a threat forever once that email has been sent out? i.e. should I cancel my card and get another one ?