Aviation Cyber-Security Sectors

What are the Three Aviation Cyber-Security Sectors
1)Aircraft Cyber-Security
2)Air Control Tower Cyber-Security
3)Airport Cyber Security
How an attack on one sector affect the other two sectors.
Why is Aviation Cyber-Security Important?
Impact of Insecure Aviation Sector
(The title of the Paper is Aviation Cyber-Security. I already wrote about what Aviation Cyber-Security is, so you don’t need to talk about that section. I want the paper to focus on the topic listed above and the table of contents should be in the same order as the topics above.
sources: should come from Government website, news article, and academic journals