По формальным признакам определите группу подлежащего и сказуемого в предложении. “however despite all the warning systems, a lost or stolen card, if used cautiously, is still good for twenty thousand dollars worth of fraudulent purchases in the week or so during which most stolen cards stayed unreported”.

However, despite all the warning systems, a lost or stolen card, if used cautiously, is still good for twenty thousand dollars worth of fraudulent purchases in the week or so during which most stolen cards stayed unreported.