Re: What happens if...
"Even giving a family member the details to your bank cards is covered - the T&Cs for these (and any of the numerous company ID/access cards or tokens I've ever held) invariably make it clear that the card or token remains the property of the issuer - in other words, you as the user are not the owner and therefor do not have the authority to delegate use of that item."
How does this square with the possible existenc of formal documents such as Power of Attorney which are drawn up for various purposes such that one person may act as an agent of another? Say, for example, in the case of acting on behalf of someone who is physically or mentally incapacitated either temporarily or longer term? This is fraud or hacking?