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What you need to know about the expiration of keys securing your machine’s boot sequence.
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The clock is ticking for Windows and Linux users to update cryptographic keys that protect their systems against firmware-based UEFI infections, a pernicious form of malware that loads before operating system and anti-malware protections start.
Beginning June 24, three certificates that cryptographically verify that each piece of firmware and software that loads during system boot will expire. The Microsoft-signed certificates are the linchpins of Secure Boot, a Microsoft-designed chain of trust. Secure Boot checks the digital signatures of all code that loads during system startup to ensure it originates from a trusted provider, such as the manufacturer of the motherboard the system runs on.
