What is Unified Extensible Firmware Interface (UEFI) and why is it more secure?

by | Feb 15, 2021 | CompTIA, Exclusive Articles, Featured, Malware Prevention

UEFI and Secure Boot

What is Unified Extensible Firmware Interface (UEFI)?

Unified Extensible Firmware Interface (UEFI) is a software interface between an operating system and platform firmware. It replaces old BIOS or Basic Input/Output System that used to be present in older computers. UEFI is also considered to be more secure as it supports a secure boot process and prevents malware like rootkits from tampering with the boot loader or critical operating system files. UEFI also supports IT administrators to diagnose and repair a computer remotely even when the system does not have any operating system installed. It was not possible with BIOS as while using BIOS, an IT administrator had to be physically present in front of a computer to diagnose and repair the system when there was no operating system installed on the system.


In this article, we will discuss:

  • What is Unified Extensible Firmware Interface (UEFI)?

  • How does the boot process work and what is BIOS?

  • What is Unified Extensible Firmware Interface (UEFI) and why is it more secure?

  • What is secure boot?

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Amrita Mitra

Author

Ms. Amrita Mitra is an author, who has authored the books “Cryptography And Public Key Infrastructure“, “Web Application Vulnerabilities And Prevention“, “A Guide To Cyber Security” and “Phishing: Detection, Analysis And Prevention“. She is also the founder of Asigosec Technologies, the company that owns The Security Buddy.

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