> > While reading a little about the "Intel Management Engine" this post > came to mind. One issue of interest might be how the Intel ME (and other > brand) silent systems can send network traffic "out of band," even while > the main system is turned off but sideband power still on. > Well, let us know if you find out. I wanted to jail a system and see if it actually tries to "phone home". Alternatively, it may be listening for specific packets to arrive. I had a brief discussion with somebody (local to Mpls) who is part of the Libre BIOS movement about this. I hypothesized that the ICMP protocol (used for ping) is used to activate the IME of a given machine. Hard to actually detect this happening unless one is listening to open IP traffic ("man in the middle" style) and collecting ICMP packets for analysis. I do not have the time to work on implimenting this now, but it can be done. > Apparently, nobody, even Google, knows how to turn this off. > This person, who reads this list, can direct you to flushing Libre BIOS to your system. We do not know for sure, but you are getting a BIOS other than what the system came with. I am uncertain of the details and how effective this is. (Will monitor this thread.)