Best OT Secure Remote Access Software for Windows of 2025

Fast, stable and secure remote access solution that allows users to connect to devices and servers remotely and resolve issues faster.

SurePassID is a sophisticated multi-factor authentication solution that can be deployed in various environments to protect both information technology and operational technology sectors, encompassing essential infrastructure, older systems, on-site operations, air-gapped setups, hybrid clouds, and fully cloud-based systems. The platform accommodates numerous authentication strategies, including passwordless and phishing-resistant methods like FIDO2/WebAuthn (utilizing FIDO2 PINs, biometrics, or push notifications), alongside one-time passwords (OTP through OATH HOTP/TOTP), mobile push notifications, SMS, voice calls, and conventional techniques. SurePassID seamlessly integrates with popular operating systems, facilitating domain and local logins, RDP/SSH remote access, and even older or embedded Windows systems typically found in OT/ICS/SCADA settings, thus allowing for offline two-factor authentication when necessary. Additionally, it offers protection for VPNs, network devices, appliances, legacy applications, and web applications through SAML 2.0 or OIDC identity provider capabilities, as well as access protocols for network devices. This flexibility makes SurePassID an essential tool for organizations aiming to enhance their security posture in diverse operational landscapes.

Armis Centrix™ unifies cybersecurity operations by delivering continuous discovery, monitoring, and protection of every asset across complex hybrid networks. Its AI-powered intelligence engine enables security teams to detect unmanaged devices, assess vulnerabilities, and mitigate risks before attackers can exploit them. Organizations can manage IT systems, industrial OT environments, medical IoMT fleets, and IoT devices from a single platform with zero blind spots. The platform supports both on-premises and SaaS deployments, making it flexible for industries like healthcare, utilities, manufacturing, and critical infrastructure. VIPR Pro enhances the platform with automated remediation workflows, helping teams prioritize issues based on real-world threat activity. Early Warning intelligence provides insight into vulnerabilities actively being weaponized, ensuring organizations can act ahead of threats. Armis Centrix™ also improves business outcomes by increasing operational efficiency, supporting compliance, and strengthening resilience. Trusted by global enterprises and recognized by Gartner and GigaOm, Armis Centrix™ is built to meet the cybersecurity demands of modern digital environments.

MetaDefender OT Access provides a secure solution for just-in-time remote access to Operational Technology (OT) and Cyber-Physical Systems (CPS), allowing both internal staff and external partners to connect safely through mutually authenticated, outbound-only TLS tunnels, thus mitigating the risks associated with inbound traffic exposure to OT networks. The system is compatible with a variety of industrial and IT protocols, including Ethernet/IP, MODBUS, OPC UA, S7Comm, Telnet, SSH, RDP, and HTTPS, which ensures it can be integrated with both legacy and contemporary OT infrastructures. Depending on the chosen deployment configuration, this solution can be managed via the cloud through AWS-hosted services or installed on-premises using a local Management Console, making it versatile enough for environments that are either connected to the internet or entirely air-gapped. It utilizes essential components like an Admin UI, a Windows client or service-level client, and a Management Console for on-site setups, effectively facilitating connection management and the enforcement of security protocols. By adapting to various operational contexts, MetaDefender OT Access enhances the security landscape of OT networks while maintaining operational efficiency.