Pass Your CMMC Assessment Without the Evidence Scramble
Attestor is continuous controls monitoring for CUI and CMMC environments — it watches your security telemetry with SIEM-style correlation and alerting, and proves your controls are operating with signed, assessor-ready evidence. A focused alternative to a traditional compliance SIEM, built for NIST 800-171 03.12.03 continuous monitoring. It tags every log event to the NIST 800-171 and CMMC practice it satisfies — so the evidence your assessor wants is already collected, signed, and ready to export.
Runs entirely inside your CUI enclave. Attestor never sends your data to Phaethon — no telemetry, no analytics, no licence check-in. The only outbound connections it makes are the alert webhooks and SMTP destinations you configure. Your audit prep stops being a project.
- Self-hosted inside your CUI enclave — raw logs never leave.
- Tags events to NIST 800-171 and CMMC automatically on first ingest — no setup.
- Cryptographically signed evidence bundles a C3PAO can verify independently, with a standalone tool — no access to your systems or signing key required.
- PostgreSQL row-level security enforces storage-layer data isolation (independently tested).
- Four-role least-privilege RBAC with a dedicated Approver role, enforced on every request.
See Attestor turn raw logs into signed CMMC evidence
Every event tagged to NIST 800-171 and CMMC on ingest. Self-hosted — raw log payloads never leave your enclave; the only outbound traffic is the alert webhooks and SMTP you configure.
Enterprise procurement? Request an invoice with PO and Net terms.
CMMC compliance shouldn't cost you a quarter every year.
Small DIB contractors are stuck between SIEMs that weren't built for CUI and GRC tools that don't actually collect evidence. Attestor was designed from day one for the controls you have to prove and the boundary you have to defend.
The week-before-the-audit scramble
Screenshots, Slack exports, ticket attachments — your team rebuilds the same evidence package every assessment cycle.
Cloud SIEMs that move CUI out of bounds
Most SIEMs ship your logs to a SaaS tenant. For DIB contractors, that's a scoping nightmare and an enclave violation.
Controls you can't prove you're meeting
AU.L2-3.3.1, AC.L2-3.5.3, IA.L2-3.5.1 — assessors want artifacts, not assurances. Attestor produces them automatically.
Tools that weren't built for CMMC
Generic SIEMs make you map every alert to a control yourself. Attestor tags evidence to NIST 800-171 and CMMC practices on ingest.
What Attestor Delivers
Continuous Controls Monitoring maps your telemetry to the controls it satisfies, alerts on security-relevant events, and produces the evidence a C3PAO verifies — the ongoing-effectiveness proof NIST 800-171 03.12.03 asks for. Every capability is mapped to the work your team is doing manually today — and to the controls your assessor will test.
Self-Hosted Inside Your Enclave
Deploys as a self-hosted Docker stack. OVA appliance packaging available on request. Runs entirely inside your CUI boundary — raw log payloads never leave your environment.
Outcome: Attestor never sends your data to Phaethon. The only outbound connections are the alert webhooks and SMTP destinations you configure.
CMMC Evidence on Autopilot
Every event is tagged on ingest with the NIST 800-171 and CMMC practice it satisfies. Detection rules, sign-in telemetry, and approvals roll up into signed evidence bundles.
Outcome: Audit prep becomes an export, not a project.
Defense-in-Depth Data Isolation
PostgreSQL Row-Level Security enforces data isolation at the storage layer — Attestor connects as an unprivileged role that cannot bypass RLS, and refuses to start if it could. Even a misconfigured query stays within the isolation boundary.
Outcome: A storage-layer control a C3PAO can verify — inside each client's own dedicated deployment.
Zero-Downtime Key Rotation
Issue a new ingestion API key, migrate your collectors, and revoke the old one with no gap in ingest — multiple keys stay valid during the roll.
Outcome: Rotate credentials on your schedule without an ingestion outage.
Sign-In Map & Impossible-Travel Detection
Forward your Microsoft Entra ID and Active Directory sign-in logs to Attestor and it renders them on a global map with risk colouring — flagging impossible-travel and anomalous logins at a glance.
Outcome: Spot account takeovers in seconds, once your auth logs are flowing.
Comprehensive Audit Trail
Every administrative action — sign-ins, role changes, integrations, evidence exports, and approvals — is recorded with actor, source IP, and outcome, and protected against deletion.
Outcome: Hands assessors a complete chain of custody, every time.
One deployment. Entirely inside your boundary.
On-Prem Evidence Collector
A hardened Docker stack (Ubuntu 22.04 LTS base) deployed inside your CUI enclave. Handles ingestion, real-time 800-171/CMMC tagging, detection rules, and signed evidence-bundle generation.
Attestor never sends your data to Phaethon. The only outbound connections are the alert webhooks and SMTP destinations you configure.
Offline Licensing
Attestor's license is cryptographically signed and verified locally — no phone-home, no cloud dependency, and no inbound or outbound connection required to operate.
Air-gap friendly by design.
Built Against the Same Standards You Have to Prove
Attestor's own controls are engineered against NIST 800-171, 800-172, ISO 27001, SOC 2, and OWASP ASVS L2 — so reviewing our security posture is straightforward.
- Encryption at rest
- AES-256-GCM for sensitive event metadata and secrets; deploy on an encrypted volume (LUKS/dm-crypt) for full at-rest coverage.
- Encryption in transit
- TLS 1.2+; mutual-TLS-capable ingest (configured at the gateway).
- Authentication
- scrypt password hashing (memory-hard), mandatory TOTP MFA, short-lived signed sessions.
- Storage-layer data isolation (RLS)
- PostgreSQL RLS at the storage layer
- Recovery objectives
- RTO ≤ 4 hours / RPO ≤ 15 minutes with standard PostgreSQL backup and replication.
- Engineered against
- NIST 800-171, 800-172, ISO 27001, SOC 2, OWASP ASVS L2
Purpose-built for NIST 800-171 and CMMC Level 2
Attestor ships with a NIST SP 800-171 / CMMC Level 2 control-mapping pack that tags events to the practices they satisfy automatically on first ingest — with zero operator setup. Additional framework packs are on the roadmap.
Built by people who run CMMC engagements every week
We watched small DIB contractors lose deals because they couldn't produce the evidence a prime requested in 30 days. Attestor was built to make that scramble disappear — and to keep CUI exactly where the regulation says it belongs.
- Self-hosted by design — collector lives in your CUI enclave
- Events tagged to NIST 800-171 and CMMC practices on ingest
- Signed, exportable evidence bundles for assessors and primes
- Four-role least-privilege RBAC with a dedicated Approver role
- Comprehensive audit trail of every administrative action, protected against deletion.
Pairs with our services
Attestor produces the evidence. Our CMMC readiness and vCISO teams help you build the program around it — from gap assessment to mock C3PAO assessment.
Stop rebuilding your evidence package
See Attestor ingest a real log source and produce CMMC-tagged evidence in under a minute.
We're onboarding a limited number of DIB design partners. Tell us about your environment and we'll be in touch within one business day.
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