VigilantSec helps defense contractors and subcontractors that handle CUI implement, operate, and prove NIST SP 800-171 controls through CMMC assessment. Every C3PAO Level 2 assessment we have supported has resulted in Final Certification on the initial attempt, with a perfect 110 out of 110 and no POA&M items.
Our team handles the readiness work directly: CMMC scoping, gap assessments, SSP and policy development, POA&M remediation planning, and mock assessments. We remain engaged through the assessment itself by organizing objective-level evidence, preparing personnel for interviews, conducting evidence walkthroughs, and serving as a dedicated assessment liaison.
We also implement and operate the underlying technical controls, including modern EDR, phishing-resistant MFA, access controls, secure configuration baselines, vulnerability remediation, and disciplined patching. We work alongside existing IT providers rather than replacing them.
As an External Service Provider, VigilantSec operates under a clearly documented shared responsibility model, supported by service descriptions, responsibility matrices, architecture documentation, control mappings, and evidence. Customers and assessors can see which requirements VigilantSec supports and how those services are delivered.
Our 24/7 managed detection and response covers endpoint, identity, cloud, email, and network telemetry. This continuous oversight supports threat detection and response, ongoing control validation, evidence maintenance, and early identification of changes that could create compliance or assessment risk.
VigilantSec was founded on the principle that cybersecurity operations and compliance readiness should work as one. We maintain SOC 2 Type II compliance and apply the same NIST SP 800-171 program to our own environment that we deliver to our customers.
