United Kingdom, Feb. 9 -- An advanced group of Chinese hackers known as Volt Typhoon have targeting critical US infrastructure for around five years.

The cyber attacks were revealed in a joint statement from American and allied intelligence agencies.

It disclosed Volt Typhoon had infiltrated the networks of various sectors, including aviation, rail, mass transit, highway, maritime, pipeline, and water and sewage organisations.

Despite the deep concern about malicious cyber activities from Volt Typhoon, Eric Goldstein, a senior official in the Cybersecurity and Infrastructure Security Agency, said: "Most of the victims we have identified have no legitimate espionage value."

The statement revealing the hacking was co-signed by the US Na...