3 ms·

I have some bad news for you =P. https://www.schneier.com/blog/archives/2009/03/sniffing_keyboa.html https://www.schneier.com/blog/archives/2009/03/sniffing_ke

• s_q_b 13y ago
  Modern SCIFs vibrate window panes to prevent laser microphones. They also use EMF shielding to prevent TEMPEST attacks. Most interesting to me is that they were aware of TEMPEST leakage as early as WWII.