Monthly scans, annual 3PAO testing, and a POA&M that never sleeps
FedRAMP is the most prescriptive framework here: the cadence is defined, the assessor must be accredited, and continuous monitoring means monthly deliverables rather than an annual push. If you are pursuing an authorisation, the testing calendar is not negotiable.
The short answer
FedRAMP requires monthly vulnerability scanning of operating systems, databases, web applications and supporting infrastructure, plus penetration testing at least annually performed by an accredited third-party assessment organisation (3PAO) as part of the annual assessment.
The requirements
What the FedRAMP text actually says
The system is scanned for vulnerabilities monthly across operating system, database, web application and container layers, with results reported and tracked.
In practice: Monthly is the floor, and coverage means every layer rather than the easy ones. Authenticated scanning is expected where the layer supports it — unauthenticated-only results get challenged.
Penetration testing is performed at least annually by an independent, accredited assessor, following the FedRAMP penetration test guidance and its defined attack vectors.
In practice: The guidance prescribes the attack vectors to cover, including external and internal testing, web application testing, social engineering and mobile where applicable. This is not a scope you negotiate freely.
The organisation develops a continuous monitoring strategy and reports monthly: scan results, an updated POA&M, inventory changes and deviation requests.
In practice: The monthly package is the real ongoing cost of FedRAMP. Teams underestimate the operational discipline it requires far more often than they underestimate the assessment.
Identified weaknesses are tracked in a Plan of Action and Milestones with remediation timelines driven by severity, and progress is reported monthly.
In practice: A finding without a dated, owned remediation plan is a finding that will be raised again. The POA&M is the artefact your authorising official actually reads.
Flaws are identified, reported and corrected, with remediation timelines aligned to severity, and updates tested before installation.
In practice: Patch discipline with evidence. Retesting after remediation is part of the loop rather than an optional confirmation.
What Makes FedRAMP Different From Everything Else Here
Every other framework on this site is outcome-based to some degree: SOC 2 lets your auditor decide, HIPAA lets you choose methods, NIS2 defers to national law. FedRAMP tells you the cadence, the coverage and who is allowed to assess you. That certainty is easier to plan and much harder to shortcut.
The other structural difference is that the work never pauses. Continuous monitoring means monthly scan results, an updated POA&M and inventory changes delivered every month, indefinitely. Teams that treat authorisation as a project and continuous monitoring as an afterthought are the ones who struggle in year two.
Where Automated Testing Fits, and Where It Cannot
The monthly scanning obligation is squarely automation territory, and doing it well means authenticated scans across OS, database, web application and container layers, with results in a form your monthly package can consume. Continuous application-layer testing goes further than the requirement and produces exactly the evidence the POA&M wants: what was found, when, what changed, whether it regressed.
The annual penetration test is not a place for automation to substitute. CA-8 requires an accredited 3PAO following prescribed attack vectors, so an automated platform supports that engagement rather than replacing it — by making sure the 3PAO finds less, which is the outcome you actually want.
The useful division: automation keeps the monthly machine running and reduces what the annual assessment surfaces; the 3PAO provides the independent attestation that only an accredited assessor can.
Container Scanning, the Part That Trips Teams Up
Containerised systems have their own expectations: images scanned before deployment, registries controlled, and evidence that what runs in production matches what was scanned. A monthly scan of long-lived hosts does not satisfy an environment where workloads are replaced daily.
Practically this means scanning in the build pipeline, controlling admission so unscanned images cannot run, and being able to show the chain from image to running workload. Teams arriving from a VM-based estate consistently underestimate this, and it is the area where an assessor will ask the most detailed questions.
Evidence
What to hand your auditor
- ✓Monthly vulnerability scan results across OS, database, web application and container layers
- ✓Evidence that scans are authenticated where the layer supports it
- ✓An annual 3PAO penetration test report following FedRAMP attack-vector guidance
- ✓A current POA&M with owners, severities and dated remediation milestones
- ✓Monthly continuous monitoring packages, delivered on time, with inventory changes
- ✓Evidence of retesting after remediation, per the flaw remediation control
- ✓For containerised systems: image scan records, admission control evidence, and image-to-workload traceability
Avoid
What costs teams an audit cycle
- ✕Treating authorisation as the finish line. Continuous monitoring is a monthly obligation with no end date.
- ✕Unauthenticated-only scanning, which an assessor will challenge for layers that support credentials.
- ✕Applying a host-oriented monthly scan cadence to containers that are replaced daily.
- ✕A POA&M with findings but no owners or dates — the fastest way to lose credibility with an authorising official.
- ✕Assuming an automated platform can stand in for the CA-8 annual test. It cannot: the assessor must be an accredited 3PAO.
FAQ
FedRAMP testing questions
Produce the evidence continuously, not the week before the audit
Penetrify tests on every deploy from $100/month, with retests included — so the trail of what was found, fixed and verified builds itself.
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