As people wrap wallets and cards in aluminium foil, expert shares habits to protect your money better

5 min readNew DelhiJul 28, 2026 05:56 PM IST Videos of people wrapping their wallets and cards in aluminium foil have been gaining traction on social media, with many claiming the simple household item can help protect against wireless theft. At first glance, the hack may seem like another internet fad, but it is based on a genuine scientific principle. Aluminium is a conductive metal that can weaken or block certain radio-frequency signals, and when a wallet is fully wrapped, it can function like a Faraday cage, making it harder for RFID (Radio-Frequency Identification) readers to communicate with chips in contactless cards and certain identity documents. DISCLAIMER: This article is based on information from the public domain and/or the experts we spoke to.The trend has also drawn attenti