https://www.rfidsmart-card.com/
China leading provider of RFID Smart Card and RFID Hotel Key Cards, Shenzhen ZDCARD Technology Co., Ltd. is RFID Hotel Key Cards factory.
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https://www.tripwire.com/state-of-security/researchers-hotel-key-cards-can-be-hacked-what-you-need-to-know
Security researchers at F-Secure have discovered a flaw that could allow millions of hotel rooms around the world to be accessed by unauthorised parties
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https://www.cardprinting.com/product/plastic-card/hotel-key-cards
Key cards and other access cards compatible with your locking system, custom printed by CardPrinting.com. Mag Stripe, RFID cards, fobs, more.
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