AIR GAP

There is a new open source effort to build out a working data exfiltration toolkit using radio frequencies.   The source code has been posted to GitHub.  More info on the news at Softpedia. 

The key defensive measure would be to make sure no malicious rogue capabilities make it to your air gapped networked systems, and that you consider RF shielding countermeasures.

Researchers preparing for a future conference presentation have released details (PDF paper here) of their successful electromagnetic (EM) attack against an air gapped system that included no additional software to be previously installed on the system being hacked.  The hardware costs to build the attacking system was around $3000.  The air gapped system had no TEMPEST protections (PDF reference for more information).

You can read more via:

• DailyMail
• TechWorm
• TimesOfIsrael
• Motherboard@Vice
• Softpedia
• OO7Software
• ComputerMagazine