8 Questions Every Business Should Ask a Zero Trust Vendor

Zero trust has become an important approach to protecting modern business environments where users, devices, applications, and data can operate across offices, cloud platforms, and remote locations. Rather than automatically trusting users or devices based on where they connect from, zero trust continuously evaluates whether to grant access based on identity, device status, context, and risk.

However, choosing a zero trust vendor requires more than comparing feature lists. Organizations need to understand how a solution fits their existing infrastructure, integrates with current security controls, and supports their long-term cybersecurity strategy.

Asking the right questions can help businesses determine whether a vendor can provide meaningful security improvements without creating unnecessary complexity.

1. How Does the Vendor Approach Zero Trust? 

Start by asking the vendor to explain how its solution supports zero trust principles.

A comprehensive approach should apply zero trust principles consistently across identities, devices, applications, data, and access policies. 

Ask whether the vendor supports:

• Continuous verification
• Least-privilege access
• Risk-based access decisions
• Device and identity evaluation
• Segmentation or application-level access controls
• Continuous monitoring and policy enforcement

The goal is to determine whether the solution supports a genuine zero trust architecture or primarily adds another authentication layer.

2. How Does the Vendor Verify Users and Devices?

Ask how the platform determines whether a user or device should receive access to a specific resource.

Authentication should be only one part of the decision. A strong zero trust solution may evaluate:

• User identity and authentication strength
• Device posture and security status
• Location and access context
• Application or resource being accessed
• Behavioral and risk signals

The vendor should also explain what happens when these conditions change. A user who was considered low risk earlier in the day should not necessarily retain unrestricted access if their account or device later shows suspicious activity.

3. How Does It Enforce Least-Privilege Access?

A zero trust implementation should limit users to the resources they actually need rather than granting broad access after authentication.

Ask how the vendor creates and manages access policies and whether permissions can be tailored according to user role, device, application, resource sensitivity, and risk.

For privileged accounts, ask whether the platform supports just-in-time access. JIT access can provide elevated permissions only for an approved task or defined period, reducing the risks associated with persistent administrative privileges.

4. How Does It Protect Endpoints and Limit Lateral Movement?

A compromised endpoint can provide an attacker with a foothold from which to target other systems. Zero Trust should therefore work alongside endpoint and network controls to reduce the opportunity for lateral movement.

Ask whether the solution can use endpoint security information when making access decisions. Integration with endpoint detection and response (EDR) can provide additional visibility into device activity and help identify endpoints that may no longer meet security requirements.

The vendor should also explain how compromised endpoints are isolated or restricted when suspicious activity is detected. This can help contain an incident before an attacker gains access to additional systems. 

5. How Does the Solution Strengthen Network Security?

Zero trust does not mean eliminating network security. Instead, it changes how organizations approach trust and access within their environments.

Modern organizations may have users and applications operating across corporate networks, cloud infrastructure, remote environments, and third-party platforms. Ask the vendor how its solution applies security policies consistently across these different environments.

Ask the vendor to demonstrate how its controls work after an initial compromise rather than focusing only on preventing the initial access attempt.

6. What Monitoring and Ongoing Support Does the Vendor Provide?

Zero Trust requires ongoing policy management and visibility. A solution that works well during deployment can become less effective if access policies, devices, identities, and risk conditions are not continuously monitored.

Ask:

• What activity does the platform monitor?
• How are suspicious access attempts identified?
• Who investigates high-risk alerts?
• How are incidents escalated?
• What support is available outside standard business hours?
• Who manages policy updates and configuration changes?

You should also clarify whether monitoring and response are handled by the vendor, your internal team, or a combination of both.

7. How Will the Vendor Support Implementation?

Zero Trust is not simply a product deployment. Implementing it effectively may require changes to access policies, identity controls, endpoint requirements, application permissions, and network architecture.

Ask whether the vendor provides configuration guidance, policy recommendations, testing support, documentation, and assistance with integrating the solution into the existing environment.

It is also worth asking how the vendor handles implementation challenges, testing, and configuration issues during deployment. 

This can help you determine whether you are purchasing a technology platform that your team must implement independently or working with a provider that can support the deployment from planning through ongoing operation.

8. Can the Zero Trust Solution Scale With Your Business?

Your access requirements will change as your organization adds employees, applications, devices, cloud services, locations, and third-party relationships.

Ask how the solution handles increasing numbers of users and devices and whether security policies can be expanded without creating significant administrative overhead.

Also evaluate licensing, reporting, administration, integration requirements, and ongoing support. A solution should remain manageable as your environment becomes more complex.

How ER Tech Pros Can Support Your Zero Trust Strategy

Zero Trust implementation requires more than selecting security technology. Organizations need a coordinated approach to identity, access, endpoints, networks, monitoring, and ongoing risk management.

ER Tech Pros helps businesses strengthen their zero trust strategy through managed cybersecurity services that support security monitoring, endpoint management, access controls, and proactive threat detection.

Our approach focuses on understanding the existing environment, identifying security gaps, and aligning zero trust principles with business and operational requirements.