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Pre-boot authentication (PBA) or power-on authentication (POA)[1] serves as an extension of the BIOS, UEFI or boot firmware and guarantees a secure, tamper-proof environment external to the operating system as a trusted authentication layer. The PBA prevents anything being read from the hard disk such as the operating system until the user has confirmed they have the correct password or other credentials including multi-factor authentication.[2]
- ^ "Sophos brings enterprise-level encryption to the Mac". Network World. August 2, 2010. Archived from the original on October 12, 2012. Retrieved 2010-08-03.
- ^ "Pre-Boot Authentication". SECUDE. February 21, 2008. Archived from the original on 2012-03-04. Retrieved 2008-02-22.