
About this episode
In this episode of The BlueHat Podcast, host Nic Fillingham and Wendy Zenone are joined by Mike Macelletti from Microsoft’s MSRC Vulnerabilities and Mitigations team to explore Redirection Guard, a powerful mitigation designed to tackle a long-standing class of file path redirection vulnerabilities in Windows. Mike shares how his interest in security began, the journey behind developing Redirection Guard, and how it's helping reduce a once-common bug class across Microsoft products. He also explains how the feature works, why it's impactful, and what developers can do to adopt it. Plus, a few fun detours into Solitaire hacking, skiing, and protein powder.
In This Episode You Will Learn:
What Redirection Guard is and how it helps prevent file system vulnerabilities
How Microsoft identifies and addresses common bug classes across their ecosystem
Why some vulnerabilities still slip past Redirection Guard and what’s out of scope
Some Questions We Ask:
What is a junction and how is it different from other redirects?
How does Redirection Guard decide which shortcuts to block?
Are there vulnerabilities Redirection Guard doesn’t cover?
Resources:
View Mike Macelletti on LinkedIn
View Wendy Zenone on LinkedIn
View Nic Fillingham on LinkedIn
Related Microsoft Podcasts:
Microsoft Threat Intelligence Podcast
Afternoon Cyber Tea with Ann Johnson
Uncovering Hidden Risks
Discover and follow other Microsoft podcasts at microsoft.com/podcasts
The BlueHat Podcast is produced by Microsoft and distributed as part of N2K media network.
Get every episode summarized
Each time The BlueHat Podcast publishes, we email you a written briefing from the transcript — the topics, who appeared, and any specific claims, with the ad reads skipped.
Email me new episodesFree for 3 shows. No card needed.
Hosts & guests
No transcript yet
This episode has not been transcribed. Request it and it moves to the front of the queue.
More episodes
More from The BlueHat Podcast

Hunting Variants: Finding the Bugs Behind the Bug
The BlueHat Podcast
Jul 9, 202539:00pending

Ignore Ram Shankar Siva Kumar’s Previous Directions
The BlueHat Podcast
Jun 11, 202539:54pending

Protecting AI at the Edge with David Weston
The BlueHat Podcast
May 28, 202539:15pending

Hacking at the Weeds with Felix Boulet
The BlueHat Podcast
May 14, 202533:19pending