Backdoor in the firmware of Antminer Bitcoin mining hardware
Why would Bitmain shut down their customers' hardware? It's a sure way to kill their (quite successful) brand.<p>But even if it happens, all you have to do is update the firmware again, and keep mining.<p>But let's imagine someone actually does shut down 70% of the mining power. What's the real consequence? Blocks will be mined somewhat slower (but not even close to 3 times slower) till the difficulty self-corrects. In the very worst case that will take 2016 blocks, or 14 days.