More evidence that if you can't physically secure the hardware, all bets are off. The ability to conduct the attack through an Ethernet cable does add a new dim

More evidence that if you can't physically secure the hardware, all bets are off. The ability to conduct the attack through an Ethernet cable does add a new dimension to the attack surface, however. I guess this is also another reason why TEMPEST defines shielding standards to help mitigate these side-channel attacks.