Zero Trust in 12 Months: A Phased Roadmap that Won’t Break the Business

Many companies are facing the pressure of meeting Zero Trust security mandates that prioritize verification through an identity-based approach to access management. The National Institute for Standards and Technology (NIST) SP 800-207 sets the standard for Zero Trust Architecture (ZTA) that supports the principles of “never trust; always verify.” For government agencies and the companies that serve them, following the Cybersecurity & Infrastructure Security Agency (CISA) Zero Trust Maturity Model is essential for maintaining compliance.

IT and security leaders want to implement Zero Trust. However, they are concerned about the complexity of making the transition and how implementing a Zero Trust strategy may interrupt operations. Companies may also have limited resources and feel they lack the specialized skills to make the change.

While organizations might attempt to convert every user, device, application, and network segment at the same time, this mass conversion approach is rarely successful. Attempting to do everything at once often comes with hefty financial costs, demands an unsustainable number of man-hours, and creates a high probability of crippling service interruptions. Instead, establishing and following a phased roadmap to implementing a Zero Trust strategy reduces risk, delivers early wins, and protects business continuity.

Zero Trust Implementation Roadmap

The CISA Zero Trust Maturity Model recommends moving through stages to achieve success with Zero Trust implementation. Here is an overview of a 12-month roadmap that your company can use to achieve Zero Trust maturity through a phased approach that puts your business first.

Months 1 to 3: Harden Identity

Prioritize phishing-resistant Multi-factor Authentication (MFA) for privileged users, centralized identity management, least-privilege access, and contextual access policies. This first phase promotes a contextual and identity-based approach to security, replacing a focus on protecting the perimeter.

Months 3 to 6: Validate Device Posture

Establish endpoint visibility and required baseline device health controls, including patching, encryption, and active endpoint protection through Endpoint Detection & Response (EDR). Before allowing access to sensitive applications, both the user and the health of their device should be evaluated.

Months 6 to 9: Pilot Zero Trust Network Architecture (ZTNA)

Identify a small group of critical applications or users, such as contractors or remote administrators, to test your policies, assess user experience, and determine support needs before broader deployment of Zero Trust tools and policies. To conduct the pilot, replace broad Virtual Private Network (VPN) access with application-specific ZTNA access.

Months 9 to 12: Expand Micro segmentation

During this phase, focus on limiting lateral movement between applications and workloads using a micro-segmentation strategy. Start with high-value systems, define legitimate communication paths, and automate access removal when employees leave or devices become noncompliant.

What Success Looks Like After 12 Months

When your company follows a 12-month Zero Trust implementation roadmap, you should experience positive outcomes, including quick wins along the way. At the end of 12 months, organizations have established stronger identity controls and use healthier devices. Companies reduce their dependence on VPNs and improve network segmentation. The phased Zero Trust implementation plan will validate ZTNA use cases, setting the stage for a clear next-phase roadmap.

Using our expertise in security and compliance, including IAM, ProActive Solutions offers Zero Trust roadmap consultations. We will work closely with your business to identify Zero Trust priorities, evaluate current tools, and build a phased implementation plan aligned with your business needs.

Get expert advice on building a Zero Trust implementation plan. Request a Zero Trust roadmap consultation with ProActive Solutions.