volt typhoon alexander yampolsky, ceo of security scorecard. alexander, what is volt typhoon and what do i need to worry about here? scott good morning. volt typhoon is a nation state threat actor group linked to china that's been in the spotlight this month due to a joint advisory issued by nsa and fbi. and the ccsa advisory noted that volt typhoon lurked inside us. critical infrastructure for at least five years, it's been burrowing into the networks of aviation, rail, mass transit, highway, maritime to reposition themselves for potentially destructive cyber attacks. now, this is not the first time, even just this week, we've heard about china and all the threats. i read in reports on there was worry by the biden administration that the cranes at the oakland port could be taken over somehow by the chinese itself. all of our infrastructure and technology is open to this sort of stuff. america's ports are the main point of entry for trade. they employ 31 million people and generate over 5.4 trillion for the us economy. so massive amounts of mone