Properly implemented, yes — an NFC lock that pairs AES-256 encryption with challenge-response authentication has no practical wireless attack today. The honest caveat lives in the word implemented. The market spans hardware that never transmits a copyable credential and hardware that announces one fixed ID to anyone who asks, and which end of that spectrum a product sits on decides whether "NFC" means protection or exposure. So instead of the usual "buy from a reputable bran

NFC energy harvesting is the process of turning the 13.56 MHz radio field emitted by an NFC device — usually a smartphone — into usable electrical power. Every NFC link is built on inductive coupling between two small antenna coils, and a passive NFC device sitting in that field can do two things at once: exchange data and draw energy (near-field communication standards, ISO/IEC 18092 and ISO/IEC 14443). A battery-free lock pushes the second capability to its logical end. Th

An NFC lock is an electronic lock that authenticates users through near-field communication (NFC) — a short-range wireless standard operating at 13.56 MHz over a range of roughly 4 cm (ISO/IEC 18092 and NFC Forum standards). Tap an NFC-enabled phone or card against the lock, the credential is verified, and the mechanism opens. Some designs go further: they carry no battery at all, drawing their operating power from the phone's NFC field itself. A lock with no battery, no wiri