So far security and privacy have naturally been the main concerns for the Oyster card and similar smart CARDS.
所以迄今为止,安全和隐私自然而然地成为了牡蛎卡及同类卡片主要关注的对象。
3
RFID chips can already be found in contactless cards, including banks cards and the Oyster system which is used by more than 10 million people to pay for public transport in London.