UK Backs Shetland–Norway Data Cable as Sabotage Fears Grow

LONDON, 10 November 2026 — EBM Newsdesk Analysis — Katie Winearls

Britain has backed plans to investigate a new subsea data cable linking Shetland with western Norway, in a move that underlines the growing strategic importance of Europe’s digital infrastructure as governments become increasingly concerned about Russian activity beneath the North Atlantic and the vulnerability of critical communications networks. The proposal, led by VodafoneThree, will examine potential routes and landing sites, with a feasibility study expected to begin next summer. Although construction has not yet been approved, the initiative represents a significant step towards strengthening Britain’s international connectivity and reducing its exposure to potential disruption of undersea infrastructure.

The timing is significant. Subsea cables have become one of the most strategically important components of the modern global economy, carrying the financial transactions, cloud computing traffic, corporate communications and digital services upon which governments and businesses depend. According to the UK government, approximately 99% of the country’s international data traffic travels through subsea cables. What was once regarded primarily as commercial telecommunications infrastructure is increasingly being treated as a matter of national security.

The proposed Shetland–Norway connection would provide an additional route between Scotland and Scandinavia, potentially improving resilience if existing infrastructure were damaged or disrupted. Research commissioned by Vodafone Business suggests the link could support businesses, public services, defence operations, data centres and other critical infrastructure. It would also represent the first new direct cable between Norway and Scotland in approximately 25 years. Three UK–Norway cables are currently operating, with another connection already planned.

The Growing Threat Beneath the North Sea

The renewed attention on subsea infrastructure comes against a backdrop of heightened concern about Russian maritime activity. In April, British armed forces, working alongside allied forces, tracked Russian submarines operating around critical undersea infrastructure in and around UK waters. The operation raised fresh questions about the extent to which hostile states might seek to identify, monitor or potentially disrupt the physical networks supporting Western economies.

In September, Reuters reported that Britain, Norway and the United States had tracked Russian deep-sea vessels near Svalbard earlier in the year, disrupting an operation associated with research into technologies capable of disabling undersea cables. Western officials have become increasingly concerned that Russia is developing capabilities that could be used against NATO infrastructure during a future confrontation.

The danger is not confined to the North Atlantic. A series of cable incidents across the Baltic Sea in recent years has exposed the vulnerability of infrastructure running through waters where geopolitical tensions have intensified. While not every incident is evidence of deliberate sabotage, the difficulty of distinguishing accidental damage from hostile interference has become a central challenge for European security planners.

Why the Stakes Are Economic as Well as Military

For Britain, the consequences of a serious disruption could extend far beyond telecommunications. Financial markets, international banking, payment networks, logistics companies and cloud service providers all depend on uninterrupted international connectivity. A prolonged interruption affecting several major routes could create consequences for businesses that extend well beyond the immediate location of damaged infrastructure.

The vulnerability of remote communities has already been demonstrated. In October 2022, damage to subsea cables connecting Shetland to mainland Scotland caused widespread disruption to communications and payment services. More recently, cable damage affecting Orkney in July 2025 disrupted internet services and affected local businesses and public services.

The UK’s parliamentary Joint Committee on the National Security Strategy has warned that resilience cannot simply be measured by the number of cables in operation. The ability of networks to absorb simultaneous failures, reroute traffic and restore damaged connections is equally important.

This is becoming particularly relevant as artificial intelligence, cloud computing and data-intensive industries increase demand for international connectivity. As explored in EBM’s analysis of the data centre power crisis, the infrastructure supporting the digital economy is becoming an increasingly important determinant of national competitiveness.

Britain Moves Towards Stronger Protection

The proposed Norway connection also comes as the UK government prepares a more comprehensive response to threats against critical undersea infrastructure. On 22 October, ministers published a White Paper proposing tougher penalties for damaging subsea cables and pipelines, alongside stronger security obligations for infrastructure operators and new government powers to intervene where national security is at risk.

The proposals include potential prison sentences of up to 14 years for those who intentionally damage critical infrastructure, as well as unlimited fines. They reflect a broader recognition that existing legislation, some of which dates back more than a century, has struggled to keep pace with modern threats.

For Europe, the challenge is increasingly interconnected. Protecting digital infrastructure is now inseparable from defence cooperation, energy security and technological sovereignty. EBM has previously examined these issues in its coverage of Europe’s defence technology sovereignty and the growing struggle for cyber sovereignty.

The Shetland–Norway proposal is therefore about considerably more than installing another fibre-optic connection across the seabed. It reflects a shift in how governments view the infrastructure underpinning modern economies: as an asset that must be protected, diversified and incorporated into national security planning.

For Britain, the feasibility study will determine whether the proposed route is commercially and technically viable. But the strategic rationale is already clear. In an era when geopolitical competition increasingly extends beneath the oceans, the security of Europe’s digital economy may depend as much on what happens below the seabed as on what happens above it.