NAC Software

Portnox delivers cloud-native network access control (NAC) software purpose-built to align with zero trust principles. Unlike NAC systems built around hardware appliances and constant upkeep, Portnox Cloud provides an agentless way to enforce access control across distributed networks, without adding a physical footprint to manage.

Business woman working on a computer

Cloud-native NAC built for modern networks.

Why cloud-native network access control?

Deploying legacy NAC software has historically meant complex appliances, licensing tiers to negotiate, and deployment cycles measured in months. A December 2025 Forrester Total Economic Impact study, commissioned by Portnox, found that organizations deploying Portnox Cloud realized a 287 percent return on investment and $5 million in net present value over three years. With a cloud-native platform in place, organizations can:

  • Gain visibility into every managed and unmanaged device connecting to the network
  • Enforce access control policies for both devices and users from a single console
  • Streamline user authentication with multi-factor authentication (MFA) and identity provider integrations
  • Scale access control across cloud, remote, and hybrid networks without adding appliances

Key Use Cases

  • Secure remote and hybrid workforces. Apply access policy to any device, anywhere, before granting network connectivity, without requiring a VPN client or corporate-owned hardware.
  • Protect IoT and BYOD environments. Extend visibility and control to unmanaged devices, from smart sensors and medical devices to personal laptops, that traditional agent-based NAC cannot see.
  • Simplify regulatory compliance. Enforce security controls that align with frameworks including HIPAA, PCI DSS, SOC 2, and other mandates, with reporting that supports an audit trail.
  • Scale without complexity. Secure network access for thousands of endpoints across distributed environments without a proportional increase in appliances or IT headcount, a specific advantage for lean IT teams managing multi-site networks.

Comparing NAC Vendors

When evaluating NAC solutions, enterprises often look at options such as:

  • Cisco ISE – strong enterprise presence, but complex to manage
  • Aruba ClearPass – feature-rich, but requires ongoing appliance management
  • Extreme Networks – strong campus networking focus, less flexible for hybrid work
  • Forescout Platform – robust device discovery, but high total cost of ownership
  • Fortinet FortiNAC – integrates with Fortinet’s ecosystem, but limited innovation and declining support

Portnox differentiates itself as the only cloud-native NAC, delivering flexible access control without on-premise infrastructure.

NAC Software vs. Legacy Tools

Searches for NAC solutions often surface frustration with outdated, hardware-heavy systems, long appliance refresh cycles, agent rollouts that miss unmanaged devices, and licensing structures that get more expensive as device count grows. A cloud-native alternative addresses each of these directly:

  • Agentless endpoint visibility. Discover and assess every device without installing or updating software agents, which matters specifically because IoT and unmanaged devices frequently cannot run one.
  • Seamless identity integrations. Native connections with identity providers including Okta, Microsoft Entra ID (Azure AD), and Ping, so authentication policy does not have to be rebuilt from scratch.
  • Always-on zero trust enforcement. Continuously monitor device compliance and enforce policy in real time, not only at the point of initial login.

NAC Best Practices

Implementing effective network access control solutions requires:

  • Understanding risks and endpoint compliance needs
  • Deploying strong authentication measures, including passwordless
  • Maintaining a dedicated access control team to enforce security policies
  • Choosing a trusted vendor that supports cloud and Zero Trust security models

With Portnox, securing every device across hybrid and cloud networks is simple, scalable, and cost-effective. The same Forrester TEI study found that customers reduced networking hardware, software, and SaaS costs by 40% — saving $2.8 million over three years — and reallocated more than 16,000 hours of network maintenance to higher-value work. Request a demo today to see how easy NAC can be.

Case Study

Indiana school district secures 15,000 devices with Portnox Cloud—fast

See how New Albany Floyd County Consolidated School District rapidly implemented access control with Portnox Cloud to secure a diverse environment of 15,000 endpoints. With limited IT staff and 20 buildings to support, the district deployed in weeks instead of months—gaining real-time device visibility, seamless Chromebook support, and strong security without adding hardware or complexity.

Case Study

Indiana school district secures 15,000 devices with Portnox Cloud—fast

See how New Albany Floyd County Consolidated School District rapidly implemented access control with Portnox Cloud to secure a diverse environment of 15,000 endpoints. With limited IT staff and 20 buildings to support, the district deployed in weeks instead of months—gaining real-time device visibility, seamless Chromebook support, and strong security without adding hardware or complexity.

NETWORK ACCESS CONTROL

FAQs About NAC Solutions

Network Access Control (NAC) is security software that verifies user identity and device posture before granting network access, then continues to enforce policy for as long as the device stays connected. It is used to prevent unauthorized or non-compliant devices from reaching network resources.

NAC software applies the zero trust principle of never assuming trust by verifying identity and device posture continuously, not only at initial connection. This closes the gap that static, one-time authentication leaves open once a device is already on the network.

NAC software enforces authentication policies, including certificate-based and multi-factor methods, and generates posture and access logs that support compliance reporting against frameworks like HIPAA, PCI DSS, and NIST 800-53. This reporting is what auditors typically request as evidence of enforcement.

Yes, if the platform is agentless. Agent-based NAC cannot see devices that cannot run software, which is common for IoT sensors and medical devices, so agentless profiling and fingerprinting is required to bring these devices into visibility and policy enforcement.

The difference between NAC and ZTNA lies in scope: NAC manages device-level access to networks, while ZTNA secures application-level access for users. Combined, they create a layered zero trust security model that protects both networks and business applications from unauthorized activity.

Cloud-native NAC reduces IT overhead by eliminating on-site appliances, manual updates, and complex maintenance. Unlike legacy systems such as Cisco ISE or Aruba ClearPass, Portnox Cloud automates continuous access control, lowers total cost of ownership, and scales effortlessly across distributed, hybrid environments.

Portnox was built from the ground up as a cloud-native platform, no hardware, no appliances, no on-premises infrastructure required. It operates from a SaaS model with 99.999% uptime, zero-touch deployment, and centralized management from a single cloud-native console. That means faster rollout, lower overhead, and no maintenance windows.

Most Portnox deployments reach initial policy enforcement within days, not months. Because it’s agentless and cloud-native, there’s no hardware to rack, no agents to push, and no professional services engagement required for baseline setup. Organizations with 100–5,000 users typically complete core NAC deployment in around two weeks.

Yes. Portnox works with nearly all existing switches, access points, and firewalls from major vendors including Cisco, Aruba, Fortinet, and Palo Alto. It connects via standard protocols (RADIUS, 802.1X) and doesn’t require replacing your existing network hardware, only your legacy NAC appliance.

Unleash access control, unified

Portnox Cloud unifies network, application, and infrastructure access control in a single cloud-native platform.

With continuous risk evaluation and centralized policy enforcement, organizations gain stronger security without managing disconnected tools.

Related Reading

Webinars

The Identity Blind Spot: Why AI Agents Are the Access Control Gap Security Teams Aren’t Ready For

Product Briefs

Portnox Cloud Platform Overview

PCI DSS

Portnox Cloud PCI DSS Shared Responsibility Matrix

Portnox Closes the Gap on Shadow AI

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