![]() ![]() These chips are supposed to make life easier by emitting radio signals for fast identification. That's because her card has a tiny RFID sensor chip. In videos like this YouTube demo, a man holds a black scanner the size of a large remote near a woman's back pocket and, voila, he's got her credit card number and expiration date. In the last few years, a whole RFID-blocking industry has sprung up, and it survives partly on confusion. That's the message you might see on TV or in ads warning that hackers can access your credit card data wirelessly, through something called radio frequency identification, or RFID. Pickpockets don't actually have to pick your pockets anymore. An industry has sprung up to make wallets and other products that block hackers from "skimming" the data. Passports and some credit cards have RFID chips that allow information to be read wirelessly. ![]()
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