Expired Microsoft Secure Boot Certificates Affect Windows and Linux Systems
Three Microsoft-signed Secure Boot certificates expired on June 24, breaking trust for Windows and Linux systems. UEFI bootkits, a form of malware that loads before the operating system and anti-malware protections start, could survive OS reinstall. Secure Boot checks the digital signatures of all firmware and software that loads during system startup to ensure it originates from a trustedprovider
Three Microsoft-signed Secure Boot certificates expired on June 24, affecting Windows and Linux users. These certificates are the linchpins of Secure Boot, a Microsoft-designed chain of trust. Secure Boot checks the digital signatures of all firmware and software that loads during system startup to ensure it originates from a trusted provider, according to ArsTechnica.com. Secure Boot is designed to thwart UEFI bootkits, a form of malware that loads before the operating system and anti-malware protections start, according to ArsTechnica.com. The expiration of certificates breaks trust for Windows and Linux systems; bootkits like LoJax could survive OS reinstall; firmware updates should be audited.
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