Nancy Lesueur walks into Microsoft's security operations not as a figurehead but as the organizational connective tissue - the Chief of Staff who ensures that what the Corporate Vice President of Customer Experience Engineering decides actually happens at scale. In a division responsible for how millions of enterprise customers experience Microsoft's security products, that's not a small job.
The title is Chief of Staff, but the role is translator. Between executive strategy and engineering execution. Between product ambition and customer reality. Between what's decided in a room and what gets built in the world. Lesueur has spent two decades learning exactly how to do this, and Microsoft Security is where that expertise landed.
Collaboration isn't a soft skill - it's how you get hard things done when the stakes are high and the org chart is wide.
Before the Microsoft Security chapter, Lesueur spent time at FiveBy Solutions, a firm that operates in the unglamorous but essential space of risk intelligence - fraud detection, abuse prevention, and compliance monitoring. This is where you learn that security isn't theoretical. It's a daily negotiation between what bad actors are doing and what legitimate systems can withstand. That experience is baked into how she thinks about customer experience in security contexts.
Earlier still, she worked at Murphy & Associates, a technology and business consulting firm. The pattern across her career is consistent: organizations that do serious, difficult work, where the gap between strategy and execution has real consequences.
Lesueur's undergraduate degree is a Bachelor of Arts from Seattle Pacific University in Seattle - a liberal arts institution with a reputation for emphasizing service, ethics, and community engagement. Those values haven't stayed theoretical. In November 2024, she traveled with Microsoft to Aotearoa New Zealand and posted about the experience of visiting Ngati Whatua Orakei Whai Maia, a Maori community partner in Microsoft's Indigenous Employee Resource Group initiative. The post drew 97 reactions and sparked genuine conversation. For someone with a relatively quiet public profile, that signal matters.
In a company with 228,000 employees, the Chief of Staff role is often where the real operational intelligence lives. It's where you see everything - budgets, roadmaps, people dynamics, customer escalations, executive priorities - and where you have to synthesize it into something coherent enough for a CVP to act on. Lesueur has been doing exactly that in one of Microsoft's most consequential divisions: security.
Microsoft Security has become one of the company's fastest-growing and most strategically important businesses, with over $20 billion in annual revenue and a product portfolio spanning identity management, threat detection, cloud security, compliance, and endpoint protection. The Customer Experience Engineering arm of that machine is responsible for translating all of that complexity into something customers can actually use. That's the context in which Lesueur works every day.
Colleagues and collaborators consistently describe her as a strong listener - not in the passive sense, but in the rarer sense of actually absorbing what people say before responding. In organizations where talking is often mistaken for thinking, that's a genuine differentiator. It also maps to a leadership style that achieves results through people rather than around them.