This letter from Clifton M. Hasegawa requests the assistance of James E. Cartwright in addressing the cybersecurity issues identified in a recent GAO report regarding maritime ports. It notes the proximity and importance of protecting Honolulu Harbor and Pearl Harbor from cyber threats. Hasegawa expresses reservations about having fully integrated cybersecurity systems between maritime ports and DOD sectors due to the rapidly evolving nature of cybersecurity threats. The letter requests Cartwright's help in bringing together stakeholders from DOD, federal, and private sectors to prioritize the GAO recommendations.