Homeplugs using Power Line Transmission ( PLT ) do cause interference to nearby equipment,
http://www.frequencycast.co.uk/powerline.htm
and http://www.ban-plt.org.uk/fuss.php[/QUOTE]
And it's worth noting that no matter what the manufacturer or vendor may say, if you use one and you cause interference you will be made to stop.
And even if they do encrypt it, how good is the encryption? Given the ease with which the traffic can be sniffed, how hard would it be for someone to break the security?As to security, some PLT modules do not encrypt the data before transmitting it and as data intended for transmission by secure wire ( CAT 5 for example ) is not always encrypted in the PC or laptop the data can be recovered by evesdroppers.