In advance of the 2020 Beijing Cyber Security Conference,BCS launched a series of events called "Dialogue on Network Security Between Cyber Giants ". The pandemic is affecting the global landscape, and the cyber space is also affected. While digital technology shows its power, it also exposes the deficiency of information construction. What impact and changes will new infrastructure bring in the wave of digitalization? How can network security innovate and adapt to new challenges? We invite industry experts to deeply explain the way forward so as to cause the industry magnetic collision and confrontation.