Security Now

Mar 24th 2015

Security Now 500

Windows Secure Boot

What does Windows Secure Boot mean for the future of non-Windows operating systems?
Records live every Tuesday at 4:30pm Eastern / 1:30pm Pacific / 21:30 UTC.
Hosts: Steve Gibson with Leo Laporte An iPhone/iPad 4-digit PIN hack, the recent Pwn2Own hacking competition, and Steve takes a look at the evolution of booting from BIOS to UEFI and how Microsoft has leveraged this into their "Windows Secure Boot" system. Download or subscribe to this show at We invite you to read, add to, and amend our show notes. You can submit a question to Security Now! at the GRC Feedback Page. Please take the TWiT Audience Survey. It only takes a few minutes and we'd love to know what you think. For 16kbps versions, transcripts, and notes (including fixes), visit Steve's site:, also the home of the best disk maintenance and recovery utility ever written Spinrite 6. Bandwidth for Security Now is provided by Cachefly. Running time: 1:39:41