UK Parliament Welcomes Undersea Cable White Paper

Publication Staff, UK Parliament
October 22, 2026

The UK Government has published a White Paper proposing a modern legal framework for protecting critical undersea infrastructure, including the telecommunications cables that carry most of the country’s international data traffic. A written ministerial statement issued on October 22 says the package is accompanied by a twelve-week public consultation. Matt Western MP, chair of Parliament’s Joint Committee on the National Security Strategy, welcomed the move and said stronger deterrence is an important part of the response to evolving threats.

The proposals address both deliberate and reckless harm. They include a new criminal-penalties regime, security and resilience duties for providers of subsea telecoms cable systems and services, and a national-security power allowing the Government to require specified industry action when necessary and proportionate. The White Paper also proposes a regulatory framework for the secure deployment and operation of subsea sensing technologies. The Government says the existing principal offence dates from 1885, refers to telegraphic communications, and no longer provides an adequate deterrent for today’s infrastructure.

For cable owners and operators, the significance extends beyond tougher punishment after an incident. Statutory security duties and a direction power could shape risk management, incident planning, reporting, and operational coordination across the UK cable sector. The ministerial statement says subsea telecoms cables carry approximately 99 percent of the country’s international data traffic, making their resilience important to economic activity and national security. The committee’s response also links the White Paper to recommendations it made in 2025 on deterrence, monitoring, information sharing, and enforcement.

The White Paper does not itself enact the new regime. It starts a consultation that contains 72 questions and invites responses from industry, academia, civil society, and individuals. Those responses will inform the development of future legislation, including the statutory framework that Parliament’s security committee says it will scrutinize closely. The current milestone is therefore publication of detailed proposals and the opening of consultation; the next confirmed step is completion of that process before the Government develops legislation and determines the final obligations, powers, penalties, and oversight arrangements.

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