I said in my introduction that NATO is constantly adapting. One demonstration of that is the incorporation of both cyber and space as new domains. NATO is now active across five domains, including land, sea and air.
It was decided by the alliance that a cyber-attack could trigger article 5, which is the article of the Washington treaty under which we are committed each to support each other militarily. Joint attribution would not be required, joint attribution being the public indication of who is responsible for an attack, which, for many allies, is something that's done nationally rather than on a joint basis, but there would have to be consensus, because all of NATO's decisions are done on a consensus basis, if article 5 needed to be tripped.