Credit card

I lost my credit card a few days ago. I withdrew some cash with my card and forgot to pick it up. I was thinking how to survive this coming week because my account was almost empty. Anyway, I realized I forgot my credit card at the ATM, so I called bank immediately to cancel my card. Fortunately, nobody used my card . Credit card is very convenient in this country because we can use it at anywhere, like parking lot machine for the ticket. However, some of them don't require neither ID card or signature so that anyone can use somebody's card. Of course we need picture ID to buy expensive stuff, but I think authorization should be more strict. Signature can be copied easily.