Get protected by paiting your wall with anti-WIFI siganle paint. Instant protection that prevents your neighbors from detecting your WIFI networks. It's like applying stealth technology to your WIFI network using paint.
This solution uses special paint that prevent wireless WIFI signal to pass through. Applfy the anti WIFI paint directly to your wall where you want to prevent WIFI signal.
Here is the details regarding the anti WIFI paint : Anti WIFI Paint