> They can hire the talent able to figure out decoding these trivial radio signals. I don't expect even older radio access systems to be that simple to abuse.

> They can hire the talent able to figure out decoding these trivial radio signals. I don't expect even older radio access systems to be that simple to abuse. For example this application note from Atmel[0] describes such a system. It uses an AES-based MAC and a rolling window counter to prevent message spoofing and replay. I wouldn't bet this implementation is actually secure, but it's not so trivial to attack. Please note I'm not saying that criminals haven't abused vulnerabilities in these systems, just that it's not a simple matter of 'decoding these trivial radio signals'. [0] http://www.atmel.com/images/atmel-2600-avr411-secure-rolling-code-algorithm-for-wireless-link_application-note.pdf http://www.atmel.com/images/atmel-2600-avr411-secure-rolling...