Sean Connelly, a prominent member of the Cybersecurity and Infrastructure Security Agency (CISA) and manager of the Trusted Internet Connections (TIC) program, is stepping down from his role as senior cybersecurity architect. His departure from CISA concludes a significant chapter that lasted more than ten years, a period in which he launched several key cybersecurity initiatives.
Connelly’s expertise has played a crucial role in the development of key programs at CISA. His work has significantly influenced the direction of the TIC program and he has been a pioneer in advancements in zero-trust security. His contributions have made a lasting impact on federal cybersecurity strategy.
Sean Connelly Leaves CISA to Join Zscaler

Transitioning from federal service in the US, Connelly will embark on a new chapter at Zscaler, a prominent player in the cybersecurity industry. At Zscaler, he will channel his wealth of experience into international zero-trust projects, aiming to support global cybersecurity frameworks.
Stephen Kovac, Global Chief Compliance Officer at Zscaler, expressed enthusiasm about Connelly’s addition to the team, emphasizing his role as a leader in shaping Zero-trust and secure access service edge (SASE) policies and compliance worldwide, reported Hstoday.
Sean is leaving his position after 11 years at CISA and more than seven years as a contractor with organizations like the State Department and NOAA. His move to Zscaler represents a strategic shift, focusing on international compliance challenges and utilizing his extensive federal cybersecurity experience.
From Federal Government to Private Sector
Notably, Connelly is not the sole federal cybersecurity expert to join Zscaler recently. Brian Conrad, former acting director of the Federal Risk Authorization and Management Program (FedRAMP), also made the transition and joined Zscaler in 2024.
During his time at CISA, Connelly led significant initiatives, from developing TIC architectures to advocating for zero-trust principles across federal civilian agencies. His impact reached beyond policy development, highlighted by his co-authorship of key publications and his instrumental role in establishing the CISA Zero Trust Initiative Office.
Moreover, Connelly influenced the Technology Modernization Fund Board, where he played a pivotal role in evaluating and allocating funding for cybersecurity projects. As Connelly embarks on this new journey, his legacy within the federal government serves as an indication of professionalism in cybersecurity on both national and global scales.
His transition to Zscaler marks a continuation of his mission to shape the future of cybersecurity, highlighting the ongoing collaboration between public and private sectors in protecting digital infrastructure.
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