Today is your presidential Inauguration Day. You were elected as president last November by a slim margin in both the popular vote and the electoral vote. You attended a worship service this morning with your family and about a dozen high-ranking members of the U.S. House and the U.S. Senate. Then, you and the current president took a ride in a convertible car to the U.S. Capitol, where you were sworn in as the new president of the United States. It is now official; you are the president! 

As you and your family are enjoying the parade, your new chief of staff and one of the key military advisors who is a member of the Joint Chiefs of Staff whispers to you that there has been a major cyberattack on key federal financial institutions across the United States that compromised the personal financial data and passwords of hundreds of thousands of citizens. 

Even though you have held office for just a few hours, you know it is critical to act swiftly and decisively so that the perpetrators of the crime, the American citizens, and political leaders (those who support you and those who do not) see you as a competent and strong leader. What are your first three actions?