The United Kingdom’s spy agency is set to launch a web portal on the dark web to recruit informants and receive secret information from agents in Russia and worldwide, Britain’s Foreign, Commonwealth and Development Office has said.

The Secret Intelligence Service, known as MI6, will officially announce the launch of the secure messaging platform called “Silent Courier” on Friday.

It is aimed at harnessing the anonymity of the dark web – the murky, hidden part of the internet often used by criminal actors – and allowing anyone, anywhere in the world, to securely contact the UK spy agency.

Users of the portal can securely pass on details about illicit activities anywhere in the world, or offer their own services, according to a Foreign Office statement.

Outgoing MI6 chief Sir Richard Moore – who is due to hand over to Blaise Metreweli later this month – will officially launch the web portal in Istanbul on Friday.

“Today we’re asking those with sensitive information on global instability, international terrorism or hostile state intelligence activity to contact MI6 securely online,” Moore is set to say when he formally announces the plans.

“Our virtual door is open to you,” he will add.

Instructions on how to use the portal will be publicly available on MI6’s verified YouTube channel.

Users have been encouraged to access it through VPNs and devices not linked to themselves.

MI6 was established in 1909 but was not officially acknowledged by the UK government until the 1990s.

The spy agency operates from the iconic SIS Building on the banks of the River Thames in London and only its head – known as “C” – is a publicly named member of the service.

In advance of the portal’s launch, new Foreign Secretary Yvette Cooper said that “national security is the first duty of any government and the bedrock of the prime minister’s Plan for Change” – referring to a national revitalisation plan outlined by the premier and Labour Party leader Keir Starmer in December.

“As the world changes, and the threats we’re facing multiply, we must ensure the UK is always one step ahead of our adversaries,” Cooper said.

“Now we’re bolstering their efforts with cutting-edge tech so MI6 can recruit new spies for the UK – in Russia and around the world,” she added.

The US’s Central Intelligence Agency (CIA) took a similar approach in 2023, when it published videos on social media attempting to recruit potential Russian spies.