every supermicro motherboard that I have dealt with (several 100s) always has a jumper which can enable(shorted)/disable the bmc/ipmi. i’ve been surprised at

every supermicro motherboard that I have dealt with (several 100s) always has a jumper which can enable(shorted)/disable the bmc/ipmi. i’ve been surprised at how many we have bought used off eBay/surplus that had the jumper open (ie bmc disabled). wouldn’t having this disabled physically (jumper open), thwart this attack? (i’m asking not suggesting) and I do realize the majority of people do have the BMC enabled, including me) also the fact that supermicro still offers this jumper to disable the BMC might speak to the fact that they (sm) are not in nor had any knowledge of this issue (ie they were not “In on it”)