Honestly, this looks like yet another Russian Hoax iteration.
Also, made me to figure Brian Krebs is merely a journalist, while real infosec researcher is Chris Krebs.
They also talked to other people including the Founder and Chief Research Officers at Unit221B about whether workarounds e.g. adding an additional keyboard were effective.
So clearly it's well known that this is real and accurate just as most of the reporting is on Russia.
> is real and accurate just as most of the reporting is on Russia
Except when it turn out to be fake news as it usually happens. For instance, linked malware research paper doesn't mentions alleged keyboard layout probe and never reveal how this probe to be performed. So, bogus.
> workarounds e.g. adding an additional keyboard
Just as bogus as placing succulent plant to "protect from computer radiation"