content: Yeah this smacks of bullshit, computers do not transmit the content of the drive via the activity light unless something has told them to do so. Meaning you have to compromise the PC before you can record the blinking light, second Lets pretend that the camera on the drone is 120 frames per second now we have under 2 minutes so I'm using 120 seconds, that means if they were in sync it could transmit up to 14400 on or off signals I'm not buying that you can transfer the contents of the machine in that amount of frames. I'm going to pretend the data they are after is in a spreadsheet and cells A1:Z100 each cell containing the number 1 and only one sheet, in office 2010 as an .xlsx file that is 74961 bytes of data so they need to transmit 5.2 bytes per camera frame (or 41.6 bits). At best this is a way to receive data from the PC after it has already been broken into, it is not a hacking it that happened before when they managed to get an activity light to flash in a pattern that sends multiple bytes of data per flash. Edit: plus you don't even need to remove the LEDs just face it away from the window or put it inside a desk that has a door , even a simple security measure like leave the light on in the office would make it much harder to get a read on it. alternatively keep secured computers out of rooms with windows entirely.