The United States has noticed a "discernible decrease" in cyberattacks by Russian-based groups since the Putin-Biden summit took place in June, US National Cyber Director Chris Inglis said Wednesday.

"It's too soon to tell whether that’s because of material efforts taken by the Russians or the Russian leadership," Inglis claimed. "It may well be that the transgressors in this space have simply kind of lain low understanding that this is - for the moment - a very hot time for them."

"We need to make sure that the continues to be the case," Inglis asserted.

Russian Foreign Intelligence Chief Sergey Naryshkin had said in September Moscow was making guarantees on cybersecurity in light of NATO advancements in that area.

The summit that brought together the Russian and US leaders saw President Putin announcing that the two parties reached an agreement on cybersecurity. Putin said the two countries would begin negotiations on cybersecurity after the summit.

The Russian leader also asserted that US sources indicate that the United States itself was the biggest source of cyberattacks in the world.

Cybersecurity is a pivotal point of conflict between the United States and Russia, and it has led to several controversies and conflicts, with US President Joe Biden warning that any cyberattack on Washington could lead to a "real shooting war" with a major power.