The hardware was always pretty vulnerable (especially to rogue DMA devices). If anything the exotic nature of these attacks shows we are through the low hanging

The hardware was always pretty vulnerable (especially to rogue DMA devices). If anything the exotic nature of these attacks shows we are through the low hanging fruit. There was never a time the hardware was secure though. That was always just wishful thinking. People were wirelessly reading data on CRTs back in the 90s. TEMPEST research is many decades ahead and the private sector is just waking up to side channel attacks.