Cyber-Attacks Based in Electromagnetic Effects

This article covers eavesdropping on computer and auxiliary data communication equipment by means of hardware, namely unintended electromagnetic emanations. The physical basis that underlies the process is covered, alongside with a canonical electromagnetic simulation. Some known cases of these exploits are covered, and real world examples of a leaking coaxial cable and a shielding conductive sheet are measured in the laboratory, with results relate to the data protection and its implications. The measured shielding effectiveness of the sheet proved to comply with usual Tempest requirements.