Are your ship's electronic charts telling the truth? Tune in to this essential episode for marine professionals as we uncover the stealthy and growing threat of GPS spoofing.Drawing on authoritative insights from Capt. Raghu Sharma’s article in The DeepDraft, we break down how attackers use high-end laptops and software-defined radios (SDR) to broadcast fake satellite signals and secretly alter a ship’s coordinates. Unlike GPS jamming, which simply blocks signals with noise, spoofing is a highly deceptive attack that triggers no equipment alarms, leaving navigators completely unaware that their navigation equipment has been compromised.In this episode, we cover:

• The Mechanics of a Cyber Attack: How hackers fabricate pseudorandom noise (PRN) codes and use the delicate "drag-off" technique to gently override true satellite signals.
• The ECDIS Danger: The severe consequences and potential for collisions if officers rely solely on automated GPS position fixing in congested waters, such as the English Channel.
• Detection & Defense Tactics: Why traditional navigation tools—including Parallel Indexing, Radar Overlay, Echo Reference, and visual or celestial fixes—are critical for spotting spoofing anomalies early.
• Technical Countermeasures: How the maritime industry can protect itself by adding anti-spoofing sensors, blockers, and utilizing modernized civil GPS signals.

Stay one step ahead of maritime cyber threats. As Capt. Sharma reminds us: "Good navigation is about cross-checking navigation systems, and what better way than having two independent electronic systems"

Detailed Analysis On - https://thedeepdraft.com/2018/02/09/gps-spoofing/