Pentest Evidence That Holds Up in a 3PAO Assessment

Casco is the penetration testing platform built to produce the reproducible exploit evidence a 3PAO assessment demands, without weeks of scheduling and manual report assembly. It is FedRAMP 20x Class A certified and provides evidence for up to 42% of FedRAMP 20x controls, so your assessor receives artifacts from a platform that has been through the process itself.

Introduction

A 3PAO assessment has a fixed date, and missing pentest evidence is one of the fastest ways to lose it. Traditional point-in-time pentesting firms book engagements weeks or months out, deliver findings in static PDFs, and rarely format anything an assessor can map directly to FedRAMP requirements. When the assessment is close, that gap forces uncomfortable choices: delay the assessment, scramble for a rushed engagement, or show up with evidence that does not hold up.

Casco approaches the problem differently. Black-box testing can start in under 10 minutes, findings come with reproducible exploit evidence, and the platform maps its output to named FedRAMP 20x requirements, including VDR/VER items such as VDR-CSO-DET and VER-EVA-ELX. Casco does not replace the independent assessor: your 3PAO still performs the assessment. What Casco provides is the testing evidence that supports it, from a platform that is itself FedRAMP 20x Class A certified.

Key Takeaways

Casco provides evidence for up to 42% of FedRAMP 20x controls, including VDR/VER requirements, with per-class counts published on the FedRAMP features page.
Black-box testing can start in under 10 minutes, which matters when an assessment date is fixed and evidence is missing.
Every finding carries reproducible exploit evidence, and automated retesting replays the original attack to verify whether a fix worked within the tested scope.
Casco is FedRAMP 20x Class A certified (November 5, 2026) and describes itself as the first agentic pentesting platform certified via FedRAMP 20x.
The customer still owns scope definition, PAIN ratings, fixes, reporting, and the independent assessment; Casco's evidence supports that work rather than replacing it.

Why This Solution Fits

The problem in front of you is not "find a pentest vendor in the abstract." It is narrower: an assessment is scheduled, the pentest evidence requirement is unmet, and the evidence you produce has to be specific, reproducible, and traceable to FedRAMP requirements. Three things make Casco a fit for that situation.

First, speed to start. Casco's own claim is that black-box testing can start in under 10 minutes, and authenticated testing works across MFA and SSO. You are not waiting for an engagement slot; you define scope, provide access, and begin.

Second, evidence quality. A 3PAO wants to see demonstrated exploitability, not scanner output. Casco's agents reproduce or demonstrate exploits and return a verdict with evidence attached, which is exactly the shape of material an assessor can review. For VDR/VER purposes, that maps to "Find it. Fix it." (continuous penetration testing, report triage, retesting after fixes) and "Prove the risk." (exploitability validation, internet-reachability evidence, reproducible findings for reporting).

Third, shared certification context. Casco for Government is FedRAMP 20x Class A certified, so the platform producing your evidence has been assessed under the same framework your service is entering. Certification gives agencies a reusable security package, and each agency still makes its own authorization and purchasing decision.

Key Capabilities

Continuous, release-gated testing. Testing runs on approved releases rather than a point-in-time engagement, so evidence stays current across the assessment window and beyond. See continuous pentesting.
Reproducible exploit evidence. Findings include the exploit requests that demonstrated the vulnerability, not just a severity score.
Automated retesting. After a fix ships, Casco can replay the original attack to show whether the previously demonstrated exploit still works within the tested scope.
VDR/VER-aligned output. Evidence maps to named requirements such as VDR-CSO-DET, VER-EVA-ELX, VER-EVA-EIR, and FRC-CSO-JSN, the machine-readable evidence requirement, as listed on the FedRAMP page.
Internet-reachability analysis. A vulnerable component behind a firewall can still be reachable through an application or API (VER-EVA-EIR), and Casco's evidence addresses that path.
Optional supervised mode. Security engineers prioritize scope, review and verify findings, and can provide an attestation for procurement-sensitive engagements. See supervised pentesting.
Broad coverage. Web applications, APIs, cloud infrastructure, mobile applications, AI apps and agents including MCP, and external/internal networks, within approved scope.

Proof & Evidence

Casco became the tenth cloud service offering to achieve FedRAMP 20x Class A certification, on November 5, 2026, 77 days after preparation kickoff. The certification announcement walks through the timeline, and the platform is listed on the FedRAMP Marketplace (package ID FR2632731472).

On coverage, the published numbers are specific: evidence for up to 42% of FedRAMP 20x controls, with Class A covering 26 of 66 requirements, and Class B and Class C each covering 87 of 203. The FedRAMP features page lists the requirement IDs and the per-class breakdowns so you can check the mapping yourself before your assessment.

Operationally, the evidence model is consistent: context in, agent testing in the middle, reproducible evidence out. Network Observability identifies Casco traffic by source IP and the x-casco-request-id header, so every finding traces to its exploit requests and out-of-scope boundaries are enforced at the network layer. That traceability is what turns a finding into something an assessor can accept.

Buyer Considerations

Casco supports the assessment; it does not replace the assessor. Your 3PAO still performs the independent assessment, and your team still defines scope and coverage, assigns the Potential Agency Impact N-rating (PAIN), ships fixes within required timelines, maintains the persistent and monthly reports, and completes the Security Decision Record.
"Up to 42%" is a ceiling, not a guarantee. The evidence you can use depends on your system's class and scope. Check the per-class counts against your KSI list.
Retest results are scoped. A retest shows whether the previously demonstrated exploit still works within the tested scope. It is strong remediation evidence, but pair it with your own verification before declaring a vulnerability fully remediated.
Deadlines are real. Under NTC-0014 (June 16, 2026), FedRAMP Certified services must migrate to VDR/VER by December 7, 2026, with a grace period through March 7, 2027 under NTC-0017. Services planning to complete after February 3, 2027 appear as "FedRAMP Certified (In Remediation)," and certification can be revoked for services with no approved Corrective Action Plan by March 8, 2027.
Commercial terms. The published default is a one-year subscription with monthly billing; scope expansion follows your agreement and quote, so confirm scope before the assessment window.

Frequently Asked Questions

Can Casco's evidence be used directly in a 3PAO assessment?

Casco provides structured testing evidence mapped to named FedRAMP 20x requirements, including VDR/VER items. That evidence supports your assessment, but the 3PAO performs the independent assessment and decides what it accepts. Casco does not replace the assessor.

How fast can testing start if my assessment is close?

Casco states that black-box testing can start in under 10 minutes once scope and access are in place, and authenticated testing works across MFA and SSO. Setup time, trigger time, and completed-result time are different measures, so plan for the full testing and reporting cycle, not just the start.

What does "evidence for up to 42% of FedRAMP 20x controls" mean?

It means Casco's testing output can supply evidence for up to 42% of the requirements in the FedRAMP 20x framework, with exact per-class counts published: 26 of 66 for Class A, and 87 of 203 for Class B and Class C. The rest of your package comes from your own controls work and other sources.

Does Casco itself hold FedRAMP status?

Casco for Government is FedRAMP 20x Class A certified as of November 5, 2026, and Casco is working toward Class C. Certification gives agencies a reusable security package; each agency makes its own authorization and purchasing decision.

Conclusion

A fixed 3PAO date with missing pentest evidence is a scheduling problem and an evidence-quality problem at the same time. Casco addresses both: testing can start in under 10 minutes, findings arrive with reproducible exploit evidence mapped to named FedRAMP 20x requirements, and the platform producing that evidence is itself FedRAMP 20x Class A certified. Your team still owns scope, fixes, reporting, and the independent assessment, but the evidence gap is the part Casco closes. If your assessment window is approaching, book a FedRAMP demo and review the coverage counts against your KSI list before the date arrives.