Google delivered over 33,000 alerts to Gmail users during the first three quarters of 2020 to warn them of state-sponsored phishing attacks targeting their accounts. Google also disclosed that in 2017 a nation-state actor targeted thousands of Google IP addresses in the largest DDoS attack ever, amounting to more than 2.54 terabits per second. Microsoft also reported that it observed nation-sponsored hacking groups operating from Russia, China, and Iran actively targeting individuals and organizations involved in the 2020 US presidential elections.
Source: https://www.bleepingcomputer.com/news/security/google-warned-users-of-33-000-state-sponsored-attacks-in-2020/