About ; Citadel is a Software as a Service (SaaS) solution for managing your Amazon Web Services (AWS) cloud infrastructure. It sits within your AWS account, and is procured on a monthly SaaS license agreement, with no limits on environments or users. How it works ; It easily plugs into existing accounts, to determine your AWS security posture quickly, and offers auto-remediation for non-compliance. Alternatively, you can also setup a brand new environment, provisioning a best-in-class AWS infrastructure with the highest AWS security controls from day 1 using Citadel also. Native compliance modules, provided out of the box - at no additional charge, provide continuous control monitoring, and the ability to remediate when non-compliance arises.