Sean Perryman

Naval Enterprise Networks (NMCI and ONE-net) ISSM, PEO Digital Package Submitting Officer
NAVWAR

Profile

Sean Perryman is one of the Navy's foremost experts in cybersecurity authorizations, including Risk Management Framework (RMF). As the Information Systems Security Manager (ISSM) for the Navy Marine Corps Intranet (NMCI) and OCONUS Navy Enterprise Network (ONE-Net); Mr. Perryman was responsible for over 400,000 endpoints, 700,000 users, and almost 1,100 cybersecurity authorizations. His consolidation of authorizations from 1,100 down to 136 in RMF, his development of full eMASS automation, reduction of ATO timelines by 80%, automation of 360 million STIG checks, and documented savings north of $140 million are just a few of his notable accomplishments leading to him recently being awarded the Navy's Meritorious Civilian Service Award; the Navy's third highest civilian medal and the prestigious John W. Mildner Excellence in Cybersecurity Award . In late 2023 Mr. Perryman transitioned to serving as the ISSM for Project Overmatch, helping to realize the Naval Operational Architecture (NOA) to better serve the warfighter at the edge. Mr. Perryman is also a Navy veteran and is surrounded by service in his immediate family: his grandfather was a Marine, his father is a retired Air Force Chief Master Sergeant, his son is an Army veteran, and his brother is still serving in uniform as the Fleet Master Chief for US Fleet Forces Command.

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