Recently Declassified Pentagon Project Blocks Hackers' Access to Wireless Networks

As businesses and government facilities using wireless networks struggle to keep their confidential data in and hackers out, it seems that WEP (Wired Equivalent Privacy) and even WPA (Wi-Fi Protected Access) may soon be obsolete and replaced by the newest high-tech protection: window tint.Th... [ read more >> ]

SIGNAL DEFENSE FILM  blocks a wide swath of the electromagnetic spectrum, but is nearly transparent to visible light.

Image comment: SIGNAL DEFENSE FILM blocks a wide swath of the electromagnetic spectrum, but is nearly transparent to visible light.
Image credits: CP Films

SIGNAL DEFENSE FILM  blocks a wide swath of the electromagnetic spectrum, but is nearly transparent to visible light.