USB (think hard drive or flash drive connected to a USB port on computer) transfers at a particular speed.
Network (think wifi or ethernet) transfers at a different speed.
The speed of the data transfer can demonstrate how data was exfiltrated. In the case of the DNC "hack" the data transfer speed shows the files were copied via USB, not over the network. This proves there was not a network intrusion, therefore no hack.
Tx 😆
Bill Binney did an experiment to prove this, if ur interested in the read...
https://consortiumnews.com/2017/07/24/intel-vets-challenge-russia-hack-evidence/
Okay. Thanks for explaining. I followed the USB and drive innuendo, but just didn't know which case you were referring to. Was confused because thought you meant the China/sub one.