Dr Kaushal on Subsea Cable Sabotage

Why It Matters

Disruptions to subsea cables can cripple financial transactions and cloud services, forcing businesses to reassess network resilience and geopolitical risk.

Key Takeaways

• Shallow-water cables can be cut by commercial vessels dragging anchors.
• Such attacks offer plausible deniability for hostile states.
• Shallow sabotage is easier to repair than deep‑water damage.
• Deep‑water sabotage requires specialized submersibles, limiting attackers significantly.
• Deep attacks are harder to deny, increasing geopolitical risk.

Summary

Dr. Kaushal explains that the vulnerability of subsea communication cables varies dramatically with water depth. In shallow regions such as the Baltic Sea, a simple commercial vessel dragging an anchor can sever a fiber‑optic line, providing a low‑cost, deniable method for hostile actors.

He notes that while shallow‑water attacks are technically easy, the damage is relatively quick to repair, limiting long‑term disruption. By contrast, sabotage in deep Atlantic waters demands advanced assets—like the deep‑diving submersibles operated by Russia’s Main Directorate of Deep Sea Research—making repairs costly and time‑consuming.

Kaushal cites recent Baltic incidents as concrete examples and stresses that deep‑water operations leave a distinctive forensic signature, reducing plausible deniability. The trade‑off between ease of execution and deniability shapes state calculus.

The analysis signals heightened risk for global data traffic, urging telecom operators and policymakers to bolster cable monitoring, diversify routing, and invest in rapid‑response repair capabilities.

Original Description

In light of the recent reports of Russian submarine operations in waters north of the UK, make sure to watch this excerpt from a previous member exclusive webinar in which Dr Sidharth Kaushal discusses factors involved in subsea cable sabotage.

#submarines

#maritimesecurity

#uk

#security

#defence

#seapower

#subsea