Foreign malicious cyber operations could target the vote, the infrastructure, and political groups or campaigns. APTs already attacked Trump and Biden staffers.
Intelligence and Pentagon agreed on the outlines of offensive cyber warfare operations if the country interfere with the vote. It under the Trump NSPM 13.
GCHQ director Jeremy Fleming: These cyber operations made a significant contribution to Coalition efforts to suppress Islamic State propaganda, hindered their ability to coordinate attacks, and protected forces on the battlefield.