Cyber attack against US - Different countries , different intentions (apart from meddling with upcoming 2020 election)

• China, has the capacity and desire to go after American targets for not only diplomatic and military information, but also for attacks on infrastructure and private-sector business.
• Russia, for example, will likely continue to go after critical infrastructure and focus on stealing intel from NATO
• Iran, meanwhile, is likely to focus on social media campaigns to help boost its public image and sway opinions in its favor.
• North Korea will look to boost its coffers with financial hacks. 

https://www.theregister.co.uk/2019/01/30/us_election_meddling/