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.