Legit Security Announces Promotions in Operations, Customer Success, and Sales

Strategic promotions position company to expand customer value and operational excellence amid rising demand for ASPM solutions

BOSTON, Massachusetts – August 12, 2025 – Legit Security, a global leader in AI-native application security posture management (ASPM), today announced the promotions of co-founder Lior Barak as Chief Operating Officer, Harel Gradus as Head of Customer Success, and John Tierney as Vice President of Sales.

These strategic appointments will propel Legit Security’s operational goals, maximize customer value, and further the company’s mission to bring AppSec clarity, speed, and scalability to more organizations.

Lior Barak, Co-Founder and Chief Operating Officer (COO)

A co-founder of Legit Security, Barak will assume the role of COO after leading the product and engineering team as chief product and engineering officer. Barak previously held engineering leadership positions at BrightSource and Checkmarx, where he was on the founding team of CxSCA.

Harel Gradus, Head of Customer Success

Gradus brings years of experience leading customer success teams and delivering field service management solutions. Gradus most recently served as the director of account management and held the position of vice president of customer success at OverIT prior to joining Legit Security.

John Tierney, Vice President of Sales

Tierney is a seasoned technologist with over 25 years of experience advising Fortune 100 organizations on technology and cybersecurity strategies. He was previously vice president of sales engineering and field chief technology officer. Before joining Legit Security, Tierney held key leadership roles at F5, Microsoft, and Palo Alto Networks.

“Lior, Harel, and John are incredibly valued members of our team, and they each carry a wealth of industry knowledge that fuels innovation and success at Legit Security,” says Roni Fuchs, co-founder and CEO at Legit. “In their new roles, they will continue empowering our team to accelerate our growth, further expand our customer pipeline, and maintain our position as a trusted leader in the industry.”

The promotions follow Legit Security’s continued investment in streamlining AppSec workflows, with the company’s recent launch of new AI capabilities and advanced code change management features. For more details, visit www.legitsecurity.com.

About Legit Security

The Legit Security ASPM platform is a new way to manage application security in a world of AI-first development, providing a cleaner way to manage and scale AppSec and address risks. Fast to implement, easy to use, and AI-native, Legit has an unmatched ability to discover and visualize the entire software factory attack surface, including a prioritized view of AppSec data from siloed scanning tools. As a result, organizations have the visibility, context, and automation they need to quickly find, fix, and prevent the application risk that matters most. Spend less time chasing low-risk findings, more time innovating.

Media Contact for Legit Security:

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