For Brad Medairy , an executive vice president who leads Booz Allen’s national cyber business, this poses opportunities and threats alike. Our clients are moving to this zero trust environment—for both IT and OT—and fundamentally modernizing their infrastructure and cyber defenses. EBiz: In your opinion, what does zero trust success look like, and what is Booz Allen doing to help federal customers achieve that success? There are lots of good reference models out there that describe the pillars of zero trust. At Booz Allen, we’ve been in the zero trust game for a long time.