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This is the video of the presentation titled "Sniffing Keystrokes with Lasers and Voltmeters" given at Defcon 17.

TEMPEST attacks, exploiting Electro Magnetic emissions in order to gather data, are often mentioned by the security community, movies and wanna-be spies (or NSA employees we guess...).

While some expensive attacks, especially the ones against CRT/LCD monitors, have been fully researched and described, some others remain relatively unknown and haven't been fully (publicly) researched.

Following the overwhelming success of the SatNav Traffic Channel hijacking talk continue with the tradition of presenting cool and cheap hardware hacking projects.

We will exploring two unconventional approaches for remotely sniffing keystrokes on laptops and desktop computers. The only thing you need for successful attacks are either the electrical grid or a distant line of sight...and no expensive piece of equipment is required.

We will show in detail the two attacks and all the necessary instructions for setting up the equipment. As usual cool gear and videos are going to be featured in order to maximize the presentation.

Andrea Barisani is a security researcher and consultant. His professional career began 8 years ago but all really started when a Commodore-64 first arrived in his home when he was 10. Now, 17 years later, Andrea is having fun with large-scale IDS/Firewalls deployment and administration, forensic analysis, vulnerability assessment, penetration testing, security training and his Open Source projects. He eventually found that system and security administration are the only effective way to express his need for paranoia. Being an active member of the international Open Source and security community he's maintainer/author of the tenshi, ftester projects as well as the founder and project coordinator of the oCERT effort, the Open Source Computer Emergency Reponse Team.