Both workloads being malicious and trying to establish a hidden data channel between them probably makes this attack a lot easier than conventional spectre/meltdown where it's trying to target ordinary processes that are not intentionally trying to be loud.
Hidden data channel between cooperating processes is not quite as alarming, but it may have some implications for malware command and control.
Hidden data channel between cooperating processes is not quite as alarming, but it may have some implications for malware command and control.