AI Sub‑Drones Take Up Cable Patrol Duty

German defense startup Helsing unveiled the SG‑1 Fathom—an AI‑driven unmanned sub that can loiter for 90 days while classifying propeller and hull acoustics 40 × faster than human sonar teams. Hundreds can be mesh‑networked to sweep critical seabed infrastructure, a capability NATO flagged after last year’s Baltic cable cuts. Analysts call it a “turn‑key deterrent” as Europe races to harden subsea assets. [Business Insider]

This story is part of the Maritime AI Digest of 16 May 2025.