What type of attack was launched on OPM?

Cyber Security by Geoffrey

Wk 5: Networks of Networks and End to End Networking

write an analysis report about the recent attack on the US Office of Personnel Management. In the report, please answer the following questions:

1- What type of attack was launched on OPM?
2- What was compromised or breached?
2- How was the attack accomplished if known?
4- Your own analysis and feedback about the attack?

5- Who are the victims? What are the implications for them?

If You used OPM as your case study in week 1, choose another attack!