Scott Stout

President Halcyon

Last Reviewed: September 28, 2026

Executive Summary

Scott Stout is President of Halcyon, a cybersecurity company founded in 2021 whose platform is built specifically to stop ransomware. He joined in February 2026 to run Halcyon’s global go-to-market organization and its operational execution. He is a career cybersecurity sales leader: he came from Cisco Security, where he was Security Chief Revenue Officer, and before that held senior roles at Deep Instinct, Palo Alto Networks, Imperva and Forcepoint. Halcyon’s leadership has changed since he joined. The co-founder who announced his hiring as CEO is now listed as Chief Scientist, and the company’s chief operating officer is serving as interim CEO.

Career Highlights

• Appointed President of Halcyon in February 2026, leading its global go-to-market organization and operational execution.
• Security Chief Revenue Officer at Cisco Security, responsible for global revenue strategy and execution across the security portfolio.
• At Cisco, led the growth of the Americas security go-to-market strategy and execution.
• Held senior leadership roles at Deep Instinct, Palo Alto Networks, Imperva and Forcepoint before Cisco, building sales and go-to-market organizations across the Americas and globally.

Professional Journey

Stout’s career has been in selling security technology to enterprises. Halcyon’s announcement of his appointment credits him with more than two decades of cybersecurity and enterprise technology leadership. Before Cisco he held senior roles at Forcepoint, Imperva, Palo Alto Networks and Deep Instinct. The release says he built and scaled sales and go-to-market organizations across the Americas and globally, but it gives no titles or dates for those roles.

At Cisco Security he led the growth of the Americas security go-to-market strategy and execution, and was most recently Security Chief Revenue Officer, responsible for global revenue strategy and execution across Cisco’s security portfolio.

Halcyon named him President on 23 February 2026. Co-founders Jon Miller and Ryan Smith founded the company in 2021 after careers at Cylance, Accuvant, ISS X-Force and the offensive-security firm Boldend. It sells an end-to-end anti-ransomware platform backed by a ransomware warranty and a 24/7 expert team, and says it has raised a $100 million Series C at a $1 billion valuation. Miller, then CEO, said Stout’s “leadership, operational rigor, and customer-first mindset will be instrumental as we continue expanding globally”. Stout said Halcyon was “taking a uniquely effective approach” to ransomware.

Halcyon’s leadership page now lists Stout as President, Aaron Mick as COO and Interim CEO, and Jon Miller as Chief Scientist and Co-Founder. No dated announcement of that change was found.

Education

No education record was found in Halcyon’s announcement, its leadership page or any other source consulted.