Wikipedia shows a spate of speculative execution/timing-based attacks against SGX, as recent as 2020. something like 10 different attacks. business-wise, I thi

Wikipedia shows a spate of speculative execution/timing-based attacks against SGX, as recent as 2020. something like 10 different attacks. business-wise, I think Intel's decision to gatekeep SGX and require developers to buy licenses to get signing keys probably doomed it, along with how weird and arcane it was to develop for. but the security was not good.