Five layers of system protection

Under direction from the FAA Office of Information Systems Security, five

layers of system protection will be examined at each Federal Aviation Administration

facility:

* Personnel security: Who is allowed to enter FAA facilities and what do

they have access to?

* Physical security: What types of encryption, firewalls and other computer

security are in place?

* Compartmentalization and Information Systems Security: What type of system

is the data on and does it interface with other systems?

* Site adaptation: What is the fingerprint for each facility? What are the

unique systems?

* Redundancy: What backup systems are in place? How do you perform procedures

manually if a system is compromised?