My gmail address is lastname@gmail.com, so it this probably happens every 3 months or so. Due to this, plenty of people intending to do slastname or plastname screw up and it goes to me. What I tend to do is if it looks important (hotel confirmation, the budget notes of some organization), I will attempt to forward it to the person intended. If I am unable to do that, I will respond to the person sending it and advise that they have the wrong address. If its not important (website registration), I'll usually ignore it.
Funnily enough, I received notification from a car dealership asking me how I was doing with my new car, etc. I recognized the name on it and called my brother to congratulate him.
Let's talk about climate change weather and how it makes renewables more and more viable.
Hi.
the Nyquist limit of the audio sampling hardware of a cell phone over instruction rate of a modern CPU is a pretty small fraction.
The "audio" in question is most likely all below 24 kHz, that being the Nyquist limit for the 48 kHz sampling hardware, unless it happens that some phones can actually sample faster, and have microphones that can respond to higher frequencies.
The instruction rate of the CPUs in question is many times that frequency.
It doesn't sound likely.
Using multiple cores turns out to help the attack (by shifting down the signal frequencies).
Say what? Through what mechanism would multiple cores shift down the frequency? And what about parallel instruction streams contributing to noise?
TEMPEST was a details-secret government requirement meant to defeat means of eavesdropping on classified computer data from its electromagnetic emissions. I guess they need to include audio too.
My impression is that the noise comes from the power supply, not the CPU. I can certainly hear it with some computers, and it is related to work on the video card in my experience. I'm astonished that you can actually pull data from that, and in fact I'd like to see independent confirmation before I believe it.
"Look! There! Evil!.. pure and simple, total evil from the Eighth Dimension!" -- Buckaroo Banzai