Company Background and Mission

Perimeter 81 was created to address a fundamental shift in how organizations operate. As businesses increasingly migrated to cloud infrastructure and adopted remote and hybrid work models, the traditional network perimeter—defined by physical office boundaries and on-premises data centers—effectively dissolved. Legacy security tools were not designed for this distributed reality, leaving gaps in protection, creating administrative complexity, and delivering poor user experiences.

The founders, both of whom had backgrounds in the Israeli military's elite technology and intelligence units, recognized the need for a security model built natively for the cloud. Their mission was to transform outdated, hardware-centric network security into a streamlined, software-defined service that could be deployed quickly and managed centrally. The company embraced the Zero Trust philosophy, which assumes that no user or device should be trusted by default, whether inside or outside the network, and that verification is required for every access request.

Core Concept and Technology Approach

At the heart of Perimeter 81's offering is the convergence of networking and security into a unified, cloud-delivered platform. This aligns with the SASE framework, a term coined by Gartner that describes the merging of wide area networking capabilities with comprehensive network security functions into a single cloud service.

Perimeter 81's platform is designed to be deployed without complex hardware installations. Organizations can create secure networks in minutes, connect users and resources through a centralized management console, and enforce granular access policies based on user identity, device posture, and other contextual factors. The technology emphasizes ease of use, rapid deployment, and scalability to accommodate organizations of varying sizes.

Products and Services

Zero Trust Network Access (ZTNA)

Perimeter 81's Zero Trust Network Access solution provides secure, identity-based access to applications and resources. Rather than granting broad network access as traditional VPNs do, ZTNA enforces least-privilege access, ensuring users can only reach the specific resources they are authorized to use. Access decisions are based on user identity, role, device health, and location, significantly reducing the attack surface and preventing lateral movement by potential attackers within the network.

Secure Access Service Edge (SASE)

The company delivered a full SASE platform that combines networking and security functions in the cloud. This integrated approach allows organizations to replace multiple point products with a single, cohesive solution. The SASE offering brings together secure connectivity, threat prevention, data protection, and centralized policy management under one unified architecture.

Firewall as a Service (FWaaS)

Perimeter 81 offered Firewall as a Service, delivering firewall capabilities from the cloud without the need for physical appliances. This service enables organizations to define and enforce network traffic policies, segment their networks, and control access between different resources and user groups. It provides granular control over inbound and outbound traffic while eliminating the maintenance burden of on-premises firewall hardware.

Secure Web Gateway (SWG)

The Secure Web Gateway component protects users from web-based threats by filtering internet traffic, blocking access to malicious or inappropriate websites, and enforcing acceptable use policies. This helps organizations prevent malware infections, phishing attacks, and data leakage that can occur through web browsing activities.

Business VPN and Secure Remote Access

Building on its early foundation, Perimeter 81 provided modern business VPN capabilities that allow remote employees to securely connect to corporate networks and cloud environments. Unlike legacy VPNs, the solution offers automatic Wi-Fi security, encrypted connections, and a seamless user experience across devices, making it well-suited for distributed and mobile workforces.

Device Posture Check

The platform includes device posture assessment features that verify the security status of devices attempting to connect to the network. Administrators can define requirements such as up-to-date operating systems, active antivirus software, disk encryption, and other compliance criteria, ensuring that only secure and compliant devices gain access to sensitive resources.

Agentless Access

For scenarios where installing client software is impractical, Perimeter 81 offered agentless access options, allowing users to securely reach web applications through a browser without requiring a dedicated agent. This is particularly useful for contractors, third parties, and unmanaged devices.

Centralized Management and Monitoring

A key strength of the platform is its unified management console, which gives IT and security teams a single pane of glass to configure policies, monitor network activity, manage users and devices, and gain visibility into traffic and access events. This centralized approach reduces administrative complexity and improves overall security governance.

Security, Compliance, and Risk Management

Perimeter 81 placed significant emphasis on helping organizations meet regulatory and compliance requirements. By enforcing strong access controls, encrypting data in transit, providing detailed audit logs, and enabling network segmentation, the platform supports compliance with frameworks and standards such as SOC 2, GDPR, HIPAA, PCI DSS, and ISO 27001. The visibility and reporting capabilities allow organizations to demonstrate compliance and respond effectively to audits.

From a risk management perspective, the Zero Trust model and least-privilege access controls minimize the potential impact of compromised credentials or insider threats. The platform's ability to segment networks and restrict lateral movement helps contain breaches and limit the damage that attackers can cause.

Target Market and Use Cases

Perimeter 81 served a broad range of customers, from small and medium-sized businesses to large enterprises across various industries including technology, finance, healthcare, retail, and professional services. Common use cases for the platform include enabling secure remote and hybrid work, securing access to cloud environments such as AWS, Azure, and Google Cloud, replacing legacy VPN infrastructure, segmenting networks for improved security, and simplifying compliance efforts.

The company positioned itself as an accessible solution that did not require deep security expertise to deploy and operate, making advanced network security attainable for organizations that may have lacked large dedicated security teams.

Acquisition by Check Point

In 2023, Check Point Software Technologies acquired Perimeter 81 to strengthen its SASE and Zero Trust capabilities. This acquisition allowed Check Point to enhance its Harmony product line and offer customers a more complete cloud- delivered security platform. Perimeter 81's technology and expertise became a core component of Check Point's strategy to address the growing demand for converged networking and security solutions in the cloud era.

Conclusion

Perimeter 81 established itself as an innovative force in the cybersecurity industry by reimagining network security for a cloud-first, remote-work world. Through its SASE platform, Zero Trust Network Access, Firewall as a Service, Secure Web Gateway, and related offerings, the company provided organizations with a modern, simplified, and scalable approach to protecting their networks and resources. Its focus on ease of use, rapid deployment, and comprehensive security made advanced protection accessible to a wide range of businesses. The company's acquisition by Check Point Software Technologies underscored the value and relevance of its technology, ensuring that its innovations continue to shape the future of cloud network security.