The next morning, Microsoft released an emergency out-of-band update: KB5087453. The patch notes read: “Resolves an issue where systems may experience high CPU usage and unexpected breaker tripping in industrial control environments.”
“I need an offline deployment tool,” she said, typing furiously. “We’re not uninstalling the update. We’re surgically replacing the entropy driver.” The next morning
She wrote a 47-line PowerShell script that invoked a System Management Interrupt—a backdoor from the BIOS era—forcing the kernel to ignore the broken TPM module and pull entropy from the network card’s chaotic packet jitter instead. ” she said