> In fact, data can be exfiltrated through vibrations at a lowly speed of half a bit per second, making AiR-ViBeR one of the slowest exfiltration methods that Guri and his team have come up with in recent years.
My personal private key has a file size of 3,243 bytes. At the quoted speed, it would take ~14.4 hours to steal assuming that the time spent recording is completely continuous.
A single ASCII character would take 16 seconds to "steal".
> USBee transmits data at about 80 bytes per second, fast enough to pilfer a 4096-bit decryption key in less than 10 seconds.
These methods are only going to be deployed for very high value data, so it's likely you would want a method of flagging a certain machine as infected (which something like AiR-ViBeR would be very suitable for) so you can use something more high frequency (but maybe more likely to be detected) to get larger amounts of data off the drive.
[0] https://arstechnica.com/information-technology/2016/08/meet-...
Although in retrospect you can get even higher speedups by condensing the character encoding table down to A-z and 0-9 and omitting quite a few of the ASCII characters from the lookup table.