ASUS is releasing this advisory to provide information related to the new implementation of a tiered certificate structure that upgrades the security infrastructure of our expanding software ecosystem... ASUS Updates Security Certificates of Motherboards, Graphics Cards, Mini PCs, Workstations
I wonder if this has to do with this hack: https://www.securityweek.com/asus-patches-hijacked-system-update-utility Wouldn't be surprised if the attackers gained the signing certificates of Asus.... worst security case for a company.
It definitely is, and this revocation is strangely late, it should have been the primary response when it was identified that asus cryptographic certificates were applied to the infected products.
This appears to only affect the "x370 PRIME motherboard range" and not the HERO,EXTREME. however the x470 is affected on both the HERO & Wifi versions.