Answer the following questions below in 300 plus words combined total in APA format with references
R1. Describe four types of secrecy practiced by enterprises.
R2. Describe two techniques to help reduce the insider threat.
R3. Which headers are left in plaintext when we use link encryption? Network encryption?
R4. Explain how key wrapping works on a network. Compare network-based key wrapping
with file-based key wrapping.