200+
Orphaned Accounts
Remediated
Never trust
Always verify — the core principle
Identity
Is the new perimeter
Least privilege
Enforced at every layer
Micro-segmentation
Limits lateral movement
Zero Trust Assessment & Readiness
Most organizations already have zero trust components deployed: MFA, endpoint management, cloud identity. We assess your posture against NIST SP 800-207 and the CISA Zero Trust Maturity Model, identify gaps, and build a realistic roadmap.
Identity as the Perimeter
In a zero trust model, identity replaces the network perimeter as the primary control point. We implement identity-based access policies using your existing identity provider: enforcing MFA, conditional access, and device compliance for every access request.
Micro-Segmentation & Network Access Control
Zero trust requires removing implicit trust from the network. We implement micro-segmentation and network access control policies that prevent lateral movement: a compromised device in one segment cannot reach systems in another without explicit policy authorization.
Device Trust & Endpoint Compliance
Device health is a zero trust access signal. We integrate endpoint management: Microsoft Intune, Jamf, CrowdStrike: into your access policies so only compliant, managed devices can reach sensitive resources.
Continuous Monitoring & Adaptive Access
Zero trust is continuous verification. We configure monitoring that evaluates risk signals during active sessions and can step up authentication or revoke access when anomalous behavior is detected without waiting for the next login.
Zero Trust Architecture Documentation
We deliver full architecture documentation covering identity flows, network segmentation maps, and policy decisions that satisfy auditors and inform future changes.
Understanding Zero Trust
What zero trust actually means and how it is implemented
What is zero trust?
Zero trust is a security model based on the principle of "never trust, always verify", no user, device, or network location is inherently trusted, regardless of whether it is inside or outside the corporate perimeter. Every access request is evaluated against identity, device health, location, and context before access is granted, and access is limited to only what is needed for the specific task. It was formalized by NIST in SP 800-207.
Who should adopt it?
Zero trust is most urgent for organizations with remote or hybrid workforces, cloud infrastructure, third-party or vendor access, or a history of lateral movement in a previous incident. It is also required or referenced by CISA guidance, DoD zero trust mandates, and is increasingly expected by cyber insurers assessing network architecture controls during policy underwriting.
Why does it matter?
Traditional perimeter-based security assumes threats come from outside. Modern attacks prove they do not, phished credentials, compromised VPN endpoints, and insider threats all start inside the perimeter. Once inside, lateral movement is unrestricted. Zero trust eliminates the assumption of trust based on network location, so a compromised account or device cannot freely reach every system it could previously access.
How is it implemented?
Zero trust is implemented across five pillars: Identity (strong authentication for every user), Devices (only managed, compliant endpoints get access), Networks (micro-segmentation removes lateral movement paths), Applications (least-privilege access per application), and Data (classification and controls on what can be accessed and by whom). Most organizations already have components in place, implementation means closing the gaps between them.
What Makes Us Different From Others
- Framework-Aligned Approach We use NIST SP 800-207 and the CISA Zero Trust Maturity Model as our reference, not marketing materials from any single vendor.
- Practical Over Ideological We build zero trust incrementally using what you already have: Microsoft, Okta, CrowdStrike, Zscaler: rather than requiring a full platform replacement.
- Identity + Network + Device Together Most zero trust projects focus on one pillar. We address identity, network segmentation, and device trust together because they are interdependent.
- Compliance Mapping Built In Zero trust architecture maps to CMMC, FedRAMP, NIST CSF, and SOC 2 requirements. We document every control mapping as the architecture is built.
- No Lock-In We design using open standards so you are not dependent on any single vendor to maintain your zero trust posture.
We had over 200 contractor accounts in Active Directory that nobody owned. garrisonOne mapped every identity, implemented PAM controls for privileged accounts, and set up automated provisioning and deprovisioning tied to our HR system. First audit after rollout, the finding list was empty.
Client results
See how we have helped
Technology / SaaS
SaaS Startup — AWS Security Hardening
A seed-stage SaaS startup had customer data in a public S3 bucket. garrisonOne conducted a full AWS security assessment against CIS benchmarks and hardened the environment in 4 weeks.
3
Public S3 buckets closed
19
Overprivileged IAM roles fixed
100%
Security review passed
Financial Services
Accounting Firm — IAM Automation
Manual offboarding across 14 systems took two days. garrisonOne automated the full user lifecycle with HR-driven provisioning and role-based access, cutting offboarding to 10 minutes.
14
Systems under IAM
10m
Offboarding time
100%
MFA coverage
Industry focus
Industries we serve
Related Services: IAM Services | PAM Services | MFA Services | Network Security
Frequently asked questions
What is zero trust security?
Zero trust is a security model based on never trust, always verify. Access to resources is never granted based on network location alone. Every request is verified against identity, device health, and context, regardless of whether it originates inside or outside the traditional network perimeter.
What are the core pillars of zero trust?
NIST SP 800-207 defines zero trust around identity (who is requesting), device (is it managed and compliant), and network (is access limited to what is needed). Additional pillars include workload security, data protection, and visibility and analytics.
How long does zero trust implementation take?
Zero trust is a maturity journey, not a one-time project. Initial foundational controls, MFA, conditional access, device management, can be deployed in four to eight weeks. Advancing through the CISA maturity model levels typically takes twelve to twenty-four months.
Does zero trust require replacing existing tools?
Not necessarily. Most organizations already have components of a zero trust architecture. Zero trust architecture unifies and extends existing tools rather than replacing them, the key is configuring them to enforce identity-based access policies.
How does zero trust relate to SASE and SSE?
SASE and SSE are cloud-delivered security architectures that implement zero trust principles at the network and application access layer using ZTNA, SWG, and CASB. They are one way to implement zero trust network access but not the complete zero trust program.
Is zero trust required for compliance?
Zero trust is not named in most frameworks but its controls satisfy specific requirements in CMMC, FedRAMP, NIST CSF, and SOC 2. Organizations pursuing federal contracts increasingly find zero trust architecture required as a technical baseline.
Resources
Company
Contact
- US: 4752 Euclid Rd Suite 11,
Virginia Beach, VA 23462 - India: Orchard Street, Sector 61,
Gurgaon, Haryana - Phone: (301) 825-5518
- info@garrisonone.com
