Italy is using Faraday bags in high-level security meetings to block smartphone signals entirely, a move aimed at preventing surveillance and protecting sensitive state discussions.
At a recent session of the Supreme Defence Council, chaired by President Sergio Mattarella, participants were required to place their phones into sealed signal-blocking pouches before talks began. The measure reflects growing concern over digital vulnerabilities in environments dealing with national security.
The practice was highlighted by Adriano Frinchi, a parliamentary spokesperson and defence committee figure, who explained that the containers used were specialised Faraday bags rather than ordinary storage cases.
These bags are built with shielding materials that create a complete barrier around the device. Once sealed, a phone cannot connect to mobile networks, Wi-Fi, Bluetooth or GPS, effectively cutting it off from any external communication.
The difference from simply switching a phone off is critical. Powering down relies on software, which could potentially be bypassed. Faraday bags, by contrast, block signals physically, leaving no channel for wireless transmission.
Modern smartphones remain constantly connected, even when idle, with multiple radio modules operating in the background. In confidential meetings, even minimal exposure can pose a risk.
Security experts warn that compromised devices can activate microphones, access cameras or transmit location data without user awareness. In such cases, a personal phone can become a surveillance tool.
By isolating devices completely, Faraday bags eliminate that risk while in use. The method has long been adopted across military, intelligence and government settings where strict information control is essential.