Oh hey, let's take a stroll down component lane.— Chris Vickery (@VickerySec) February 3, 2020
The ds9208 barcode scanner (which ES&S says is used) is equipped with bluetooth pairing and accepts emulated arbitrary ascii keypad input via barcodes.
Product manual is available online: https://t.co/ymBPf9BEX8
This is so fkt. pic.twitter.com/RlJsQgFoHa
Translation:— Chris Vickery (@VickerySec) February 3, 2020
*** You can hack this shit with crafted pre-printed barcode images ***