Nearly a dozen vulnerable and now revoked UEFI shim bootloaders remained trusted for years, giving attackers a path to bypass Secure Boot. This story comes via www.darkreading.com. The full article is available at the source link below. Frank will update this post as more details emerge. Stay tuned for more coverage on this topic.

Source: https://www.darkreading.com/cyber-risk/forgotten-bootloaders-expose-secure-boot-blind-spot