Zero Trust is no longer a slide-deck idea — it's a procurement requirement. EO 14028 set the direction, OMB M-22-09 set the deadline, and CISA's Zero Trust Maturity Model 2.0 set the scoring rubric agencies are now graded against.
If you're sourcing a new security tool, contract, or platform in 2026, this guide explains what each pillar of the maturity model actually evaluates, and the buying signals that map to a real maturity uplift instead of a checkbox.
The five pillars, in plain English
CISA's model evaluates an agency across five pillars. Each has four maturity stages — Traditional, Initial, Advanced, and Optimal — and three cross-cutting capabilities (visibility, automation, governance) layered on top.
- Identity — moving from passwords + MFA to phishing-resistant, continuous identity verification.
- Devices — knowing every device, enforcing posture, and brokering trust before access.
- Networks — micro-segmentation, encrypted-in-transit by default, and runtime ingress decisions.
- Applications & Workloads — continuously assessed apps with secure software supply chains.
- Data — classification, tagging, and DLP-driven access control rather than perimeter assumptions.
Buying signals that move maturity
Vendors will all tell you they're 'Zero Trust.' These are the questions that surface whether a tool actually advances your maturity score:
- Does it consume strong identity signals (FIDO2, PIV/CAC, continuous risk score) — or just username/password?
- Does it enforce policy at runtime, per request — or only at session start?
- Does it integrate device posture from your MDM/EDR — or assume the network is the boundary?
- Does it produce machine-readable telemetry for your SIEM/data lake — or just dashboards?
- Can it operate inside a FedRAMP-authorized boundary today — or is it on the roadmap?
Procurement language: ask vendors to map their offering to specific CISA pillar capabilities and target maturity stage, with named features. "Supports Zero Trust" is not an answer.
Sequencing matters more than vendor selection
Most agencies have funding for one or two pillar uplifts per fiscal year, not five. Sequence around dependency: identity first, then devices, then network and application enforcement layers that consume those signals.
Data-pillar uplifts (classification, DLP, ABAC) tend to require the identity work as a prerequisite, so they reward patience.
How Atlas helps
We help agencies translate Zero Trust strategy into a concrete buy: which capability to fund first, which OEM lines on the GSA Schedule actually satisfy the requirement, and how to bundle services + licenses on a single consolidated quote.
We're vendor-neutral — what we recommend depends on what's already in your stack, not on a partner tier.