# Best OT Secure Remote Access Software - Page 2 *By [Lauren Worth](https://research.g2.com/insights/author/lauren-worth)* Operational technology (OT) secure remote access software is used to secure remote connections between operators and OT environments. Typically, these environments consist of industrial equipment and machinery that present physical and digital risks if compromised. OT is used to monitor and control physical infrastructure while information technology (IT) manages data and information systems. Companies use OT secure remote access software to manage users, allocate access privileges, and monitor behaviors for anomalies, threats, or misuse. These tools are traditionally managed by IT and security teams who specialize in complex industrial environments such as manufacturing and utilities. Increasingly connected equipment and expanding remote workforces have increased the need for businesses to control access to their OT securely. These tools have similar features to many [privileged access management (PAM) software](https://www.g2.com/categories/privileged-access-management-pam) and [IoT security solutions](https://www.g2.com/categories/iot-security-solutions). However, OT secure remote access software is used exclusively in OT environments rather than broader IT systems or non-OT environments. To qualify for inclusion in the OT Secure Remote Access category, a product must: - Facilitate remote access specifically to OT environments - Provide user provisioning and governance features - Manage tasks such as remote maintenance while enforcing strict access controls - Monitor and log remote access sessions ## How Many OT Secure Remote Access Software Products Does G2 Track? **Total Products under this Category:** 31 ### Category Stats (May 2026) - **Average Rating**: 4.45/5 - **New Reviews This Quarter**: 1 - **Buyer Segments**: Mid-Market 100% - **Top Trending Product**: BeyondTrust Privileged Remote Access (+0.009) *Last updated: May 24, 2026* ## How Does G2 Rank OT Secure Remote Access Software Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 100+ Authentic Reviews - 31+ Products - Unbiased Rankings G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category. ## Which OT Secure Remote Access Software Is Best for Your Use Case? - **Leader:** [BeyondTrust Privileged Remote Access](https://www.g2.com/products/beyondtrust-privileged-remote-access/reviews) - **Easiest to Use:** [MSP360 Connect](https://www.g2.com/products/msp360-connect/reviews) - **Top Trending:** [BeyondTrust Privileged Remote Access](https://www.g2.com/products/beyondtrust-privileged-remote-access/reviews) - **Best Free Software:** [BeyondTrust Privileged Remote Access](https://www.g2.com/products/beyondtrust-privileged-remote-access/reviews) --- **Sponsored** ### BeyondTrust Privileged Remote Access Privileged Remote Access (PRA) eliminates the risks inherent in remote access solutions dependent on VPNs and RDP. PRA delivers seamless, just-in-time access through encrypted tunnels to IT and OT systems. Each connection is brokered by the BeyondTrust platform, ensuring a zero-trust approach that grants the least amount of privilege necessary. By providing least-privileged access on demand, you can streamline operations, while reducing your attack surface and administrative overhead. Get a Free Trial: https://www.beyondtrust.com/privileged-remote-access-trial Watch a Demo: https://www.beyondtrust.com/demos Learn more about BeyondTrust Privileged Remote Access: https://www.beyondtrust.com/products/privileged-remote-access [Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=paid_promo&secure%5Bad_slot%5D=category_product_list&secure%5Bcategory_id%5D=2874&secure%5Bmedium%5D=sponsored&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=15211&secure%5Bresource_id%5D=2874&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fot-secure-remote-access%3Fpage%3D2&secure%5Btoken%5D=1c6b72e5435071d9de267b8321af3966b634c5b842bad6764b68845c30b3c18e&secure%5Burl%5D=https%3A%2F%2Fwww.beyondtrust.com%2Fproducts%2Fprivileged-remote-access&secure%5Burl_type%5D=paid_promos) --- ## What Are the Top-Rated OT Secure Remote Access Software Products in 2026? ### 1. [Secomea](https://www.g2.com/products/secomea/reviews) Secomea is a Secure Remote Access (SRA) solution purpose-built for industrial networks and OT equipment. Over 8,000 customers around the world use it every day across thousands of sites to manage remote access to their operational environments and prevent downtime. šŸŒ Founded in 2008, Secomea has been serving manufacturers and machine builders for over 15 years. Besides our HQ in Copenhagen and our offices in the US, China, and Japan - we have an international network of 70+ partner distributors, giving us a global reach to offer you assistance anywhere your sites are located in the world while still providing local support and close customer relationships. šŸŒ Our solution seamlessly connects to any OT equipment, empowering organizations to secure cyber-physical systems. You can manage your techniciansā€™ access to let them intervene in any of your OT sites right away, wherever they are. So, you eliminate travel expenses, minimize response time, reduce security risks, and prevent downtime. šŸ”§ Secomea simplifies secure remote access and gives you global oversight while maintaining local control. The implementation only takes one day per site. With an interface that is very easy and intuitive to use even for non-IT people, we help you defend your factory floor. šŸ›”ļø **Average Rating:** 4.2/5.0 **Total Reviews:** 3 **Who Is the Company Behind Secomea?** - **Seller:** [Secomea](https://www.g2.com/sellers/secomea) - **Year Founded:** 2008 - **HQ Location:** 2150 Nordhavn, Copenhagen, DK - **Twitter:** @Secomea (1,479 Twitter followers) - **LinkedInĀ® Page:** https://www.linkedin.com/company/secomea/ (124 employees on LinkedInĀ®) **Who Uses This Product?** - **Company Size:** 100% Mid-Market ### 2. [SurePassID Authentication Server](https://www.g2.com/products/surepassid-authentication-server/reviews) SurePassID is a leading provider of authentication solutions for demanding critical infrastructure environments, including on-premise, air-gapped, and hybrid systems. SurePassID seamlessly secures users and applications across Information Technology (IT) and Operational Technology (OT) while maintaining physical/logical separation and meeting the latest Zero Trust mandates. SurePassID offers 6 Nines (99.9999%) of availability; passwordless, phishing-resistant multi-factor authentication (MFA); SAML 2.0 IdP on-prem or in the cloud; FIPS 140 and AES 256 cryptography; unmatched technical support; and a wealth of other features. To find out more, please visit www.surepassid.com. **Who Is the Company Behind SurePassID Authentication Server?** - **Seller:** [SurePassID](https://www.g2.com/sellers/surepassid) - **Year Founded:** 2010 - **HQ Location:** St. Petersburg, US - **Twitter:** @SurePassID (43 Twitter followers) - **LinkedInĀ® Page:** https://www.linkedin.com/company/surepassid/ (8 employees on LinkedInĀ®) ### 3. [WALLIX One Remote Access](https://www.g2.com/products/wallix-one-remote-access/reviews) Our solutions prioritize cybersecurity, usability & regulatory compliance. **Who Is the Company Behind WALLIX One Remote Access?** - **Seller:** [WALLIX](https://www.g2.com/sellers/wallix-002f7b96-68be-48a7-95a8-6e49a9d1194c) - **Year Founded:** 2003 - **HQ Location:** Paris, FR - **Twitter:** @wallixcom (2,496 Twitter followers) - **LinkedInĀ® Page:** https://www.linkedin.com/company/wallix (272 employees on LinkedInĀ®) - **Ownership:** EPA: ALLIX ### 4. [Xage Security](https://www.g2.com/products/xage-security/reviews) The Xage Security Suite delivers comprehensive security for industrial operations, protecting every element, new or legacy, and every interaction: human-to-machine, machine-to-machine, or edge-to-cloud. **Average Rating:** 4.0/5.0 **Total Reviews:** 1 **Who Is the Company Behind Xage Security?** - **Seller:** [Xage Security](https://www.g2.com/sellers/xage-security) - **Year Founded:** 2017 - **HQ Location:** Palo Alto, California, United States - **Twitter:** @xageinc (1,975 Twitter followers) - **LinkedInĀ® Page:** https://www.linkedin.com/company/xage-security/ (100 employees on LinkedInĀ®) **Who Uses This Product?** - **Company Size:** 100% Enterprise ### 5. [XONA Critical System Gateway (CSG)](https://www.g2.com/products/xona-critical-system-gateway-csg/reviews) The XONA Critical System Gateway (CSG) is purpose-built to provide frictionless and compliant user access to critical infrastructure (CI) and operational technology (OT) assets. XONA enables simple and secure remote operations to these CI and OT assets while protecting them from cyber threats posed by a distributed workforce, including third-party vendors. The CSG allows users to quickly connect and manage critical infrastructure assets and systems from anywhere at any time. The XONA platform has integrated a zero-trust framework comprised of multi-factor authentication, user-to-asset access controls, protocol isolation, user session analytics, and automatic video recording. Support for SAML 2.0 is available. XONA is the single, secure portal to the cyber-physical world enabling critical operations to happen from anywhere at any time with total confidence and trust. **Who Is the Company Behind XONA Critical System Gateway (CSG)?** - **Seller:** [XONA Systems](https://www.g2.com/sellers/xona-systems) - **Year Founded:** 2017 - **HQ Location:** Hanover, US - **LinkedInĀ® Page:** http://www.linkedin.com/company/xonasystems (48 employees on LinkedInĀ®) ### 6. [Zscaler Privileged Remote Access](https://www.g2.com/products/zscaler-privileged-remote-access/reviews) Zscaler Privileged Remote Access enables fast, direct, and secure access to operational technology (OT), Information Technology (IT), and industrial Internet of Things (IIoT) assets in field locations, the factory floor, or anywhere without relying on VPNs or agents. Using the Zscaler Zero Trust Exchangeā„¢ platform, plant operators can enable remote employees, contractors, and third-party technicians to remotely maintain critical OT systems with role-based, just-in-time access. PRA enables clientless browser-based access for employees, vendors and contractors with complete governance controls and sandboxed file transfers, eliminating the risk of malware infections from unmanaged endpoints. Key Benefits: ā€¢ Boost uptime and productivity: Minimize downtime with secure, fast, reliable access for technicians and vendors, with governance controls. ā€¢ Ensure people and plant safety: Isolate OT systems, making them invisible to attackers, and preventing threats from moving laterally from IT assets. ā€¢ Reduce complexity: Quickly and easily provision or remove access without firewalls, VPNs, or software agents, avoiding costly downtime. **Who Is the Company Behind Zscaler Privileged Remote Access?** - **Seller:** [Zscaler](https://www.g2.com/sellers/zscaler) - **Year Founded:** 2008 - **HQ Location:** San Jose, California - **Twitter:** @zscaler (17,575 Twitter followers) - **LinkedInĀ® Page:** https://www.linkedin.com/company/234625/ (8,743 employees on LinkedInĀ®) - **Ownership:** NASDAQ:ZS ## What Is OT Secure Remote Access Software? [System Security Software](https://www.g2.com/categories/system-security) --- ## How Do You Choose the Right OT Secure Remote Access Software? ### What You Should Know About OT Secure Remote Access Operational technology secure remote access lets authorized users safely connect to and manage industrial control systems (ICS) and other OT devices remotely. Remote access security software gives access and control of equipment from anywhere with an internet connection without the need for physical presence. OT secure remote access software is a specialized solution designed to provide secure access to [operational technology](https://www.g2.com/glossary/operational-technology-definition) systems that are critical to industries such as manufacturing, energy, utilities, and transportation. It makes sure that engineers, technicians, plant managers, and other authorized personnel can do their jobs from remote locations without risking exposure to cyber threats. OT secure [remote access](https://www.g2.com/glossary/remote-access-definition) comes in handy when on-site access is impractical or impossible, such as emergencies, off-hours, or when dealing with geographical limitations. Setting up remote access security enhances operational efficiency and supports business continuity by guaranteeing that critical systems can be accessed and managed anytime you have an internet connection. ### Features of OT Secure Remote Access Software Itā€™s important to shield your infrastructure from unauthorized parties to maintain integrity and confidentiality. Some common features of OT secure remote access software are as follows.  - **Network segmentation** divides the network into separate segments, each containing a subset of the devices and assets. It enhances security by stopping compromised segments before the breach extends to other parts of the network. - [Virtual local area networks](https://www.g2.com/articles/network-virtualization#:~:text=network%20virtualization.%20A-,virtual%20LAN,-is%20a%20subnetwork) **(VLANs)** create logically separate networks within the same physical one. Like segmentation, VLAN support in remote access software enables safe, controlled access to specific network segments, which helps enforce security policies and reduce the attack surface. This segregation simplifies network administration for OT devices. - [Network mapping](https://www.g2.com/glossary/network-mapping-definition) shows you your network by graphically displaying network devices, paths, and connections. Network mapping is important for identifying all devices in the OT environment and how they interact, which is essential for troubleshooting. - [Asset management](https://learn.g2.com/asset-management), in the context of OT secure remote access, is the ability to track and manage information regarding network devices and systems. Solid asset management recognizes vulnerabilities, manages updates, and sustains your security posture. This centralized repository simplifies tasks like tracking asset health, configuration, and scheduling maintenance. - [User provisioning](https://www.g2.com/articles/user-provisioning) and governance functionalities empower administrators to create user accounts within the software. This keeps unauthorized personnel out of the system, minimizing the risk of shady login attempts. - **Role-based access control (RBAC)** assigns system access to users based on their role within the organization. Users are granted access only to the devices and functions necessary for their assigned tasks. - **Policy-based access controls** , as the name indicates, use policies to determine whether access requests should be granted. Policies can include factors like time of day, location, or device type. These functionalities establish predefined rules that govern user access. - **Endpoint security** protects endpoints, such as user devices and workstations, from [malware](https://www.g2.com/glossary/malware-definition). It includes antivirus software, firewalls, and intrusion detection systems. Endpoint security also makes remote devices comply with security policies. ### Types of OT Secure Remote Access Software Each type of secure remote control software differs in terms of ease of use, flexibility, and comprehensiveness of security features. Here are some of the different types. - **Virtual private networks (VPNs):** [VPNs](https://www.g2.com/categories/business-vpn) extend a private network across a public network. This means users can send and receive data across shared or public networks as if their devices were directly connected to the private network. VPNs encrypt all data in transit and offer a safe conduit for remote access. - [Endpoint security](https://learn.g2.com/endpoint-protection) **:** This term refers to the practices used to protect endpoints on a network. It often includes antivirus, firewall policies, [intrusion prevention systems](https://www.g2.com/categories/intrusion-detection-and-prevention-systems-idps). It may also involve making sure that the endpoints meet certain security standards before they can access the network. - **Point-to-point protocol over Ethernet (PPPoE):** This network protocol encapsulates PPP frames inside Ethernet frames. Mostly used for broadband modem connections, it provides authentication, encryption, and compression. - **Internet protocol security (IPsec):** is a protocol suite for securing [internet protocol](https://www.g2.com/glossary/internet-protocol-definition)(IP) communications by authenticating and encrypting each IP packet of a communication session. Itā€™s often used alongside VPNs to secure the tunnel created for remote access. - [Network access control (NAC)](https://www.g2.com/articles/network-access-control) **:** NAC systems enforce security policy compliance on devices before theyā€™re allowed to access the network. They grant differential access to network resources based on a userā€™s role, device type, device health, or time-of-day restrictions. - **Zero trust approach:** The [zero trust model](https://learn.g2.com/zero-trust-model) assumes that no system, network, or service operating outside or inside the perimeter should be trusted. Instead, it advocates for rigorous identity verification and strict access controls applied both externally and internally. - **Secure shell remote access (SSH):** This is a cryptographic network protocol for operating network services securely over an unsecured network. Itā€™s widely used for logging in to remote machines to execute commands, but also supports tunneling, forwarding Transmission Control Protocol (TCP) ports, and X11 connections. - [Single sign-on (SSO)](https://www.g2.com/articles/what-is-single-sign-on) **:** SSO lets users log in once to gain access to multiple systems. This simplifies the user experience, but it must be managed correctly to maintain an appropriate level of security. - **Desktop sharing:** [Remote desktop software](https://www.g2.com/categories/remote-desktop) lets users remotely view and operate a computer as if they were seated in front of it. This is used for remote technical support, collaboration, and presentation. ### OT vs IT security  OT security and Information Technology (IT) are two distinct domains with unique security challenges.  **IT** focuses on managing and processing information, primarily through digital systems and networks.  **OT** , on the other hand, is concerned with controlling physical devices and processes, such as those found in manufacturing plants, power grids, and oil refineries. While they may overlap in some areas, their fundamental differences require tailored security approaches. **IT** encompasses a wide range of technologies, including computers, servers, databases, and software applications. IT security aims to protect sensitive data and systems from cyber threats such as hacking, malware, and data breaches.    **OT** systems often use specialized hardware and remote access security to monitor and control industrial processes, ensuring safety, efficiency, and reliability. OT security focuses on protecting these physical systems and OT devices from cyberattacks that could disrupt operations, cause physical damage, or lead to safety hazards. **Convergence of IT and OT** The increasing integration of IT and OT systems, driven by the [Internet of Things (IoT)](https://www.g2.com/glossary/iot-security-definition) and Industry 4.0, has blurred the lines between the two. This convergence creates new security challenges as traditional IT security measures may not be sufficient to protect OT systems.    #### Best Practices for OT and IT Security - **Segmentation:** Isolate OT networks from IT networks to limit the potential impact of [cyberattacks](https://www.g2.com/articles/cyber-attack).    - **Access control:** Implement strong access controls to restrict critical systems and data access.    - **Patch management:** Keep OT systems updated with the latest security patches, considering the potential impact on operations.    - **Network security:** Use firewalls, intrusion detection systems (IDS), and intrusion prevention systems (IPS) to protect OT networks.    - **User training:** Educate personnel about security best practices and potential threats. ### Benefits of OT Secure Remote Access Software Secure remote access maintains operational efficiency, keeps industrial environments safe, and ensures that critical processes remain uninterrupted. Here are some other common benefits. - **Enhanced security:** Secure remote access solutions in OT environments are designed with strong measures such as end-to-end encryption, [multi-factor authentication](https://www.g2.com/articles/multi-factor-authentication), and access-monitoring sessions. This helps safeguard critical infrastructure from cyber threats and unauthorized access so only authenticated users can interact with OT systems. - **Improved compliance:** With stringent regulatory requirements in many industries, secure remote access systems help organizations stay compliant with regulatory standards. They offer robust audit trails, real-time monitoring, and reporting features that facilitate transparent documentation. This is necessary for demonstrating compliance with regulatory frameworks during audits. - **Better operational efficiency:** By allowing remote access to systems, these solutions quickly resolve issues, reducing the need for on-site visits and associated costs. Technicians can troubleshoot and resolve problems anywhere. - **Reduced downtime:** With instantaneous remote access capabilities, problems can be addressed immediately. - **Effective business continuity:** In the event of an emergency, such as natural disasters, OT secure remote access allows businesses to continue remote operations. Key personnel can still access and manage OT systems, sustaining critical business functions. - **Cost savings:** [Remote support software](https://www.g2.com/categories/remote-support) reduces the need for travel, saving money associated with business trips. Resources can be managed remotely. - **Real-time monitoring:** Continuous monitoring of OT environments means you can find and troubleshoot problems as they happen. - **Regular maintenance and updates:** OT systems can be maintained regularly and updated easily when remote access is available. - **Asset management:** Better visibility and control over assets in the OT network, which helps identify issues and manage resources more efficiently. ### Who Uses OT Secure Remote Access Software? Professionals who require remote operational technology access use OT security solutions. - **OT engineers and technicians** often need to configure, monitor, and maintain OT equipment such as PLCs, SCADA systems, and other control systems. Secure remote access makes it simple to perform diagnostics, make configuration changes, and keep tabs on systems from offsite locations. - **Security analysts and IT teams** are responsible for protecting OT environments from cyber threats. Analysts use remote access software to track network traffic, analyze security logs, investigate anomalies, and respond to incidents in real-time. - **Maintenance personnel** use OT systems remotely. Secure remote access allows them to identify and resolve issues ā€“ often without the need for on-site visits. - **Emergency response teams** utilize secure remote access to gain immediate visibility into affected systems in the event of an operational incident or cyber attack. They then have the means to execute corrective actions to soften damage and restore normal operations as quickly as possible. - **Plant managers** use secure remote access to oversee operations. With real-time access to systems, they can monitor performance and make adjustments from anywhere. ### Challenges with OT Secure Remote Access Software Whichever platform you choose, youā€™ll need to maintain a strategic approach that includes configuring your tools, continuous monitoring, and staying on top of response plans as your organization evolves. Some challenges that come with remote access security are discussed here. - **Operational complexity:** Introducing remote access solutions adds a layer of complexity. Administrators must balance the need for security with user-friendliness to ensure protocol isnā€™t hindered by cumbersome security procedures. - **Risk of disruption:** Remote access can disrupt your workflow if you donā€™t set it up correctly. For example, uncontrolled remote access could lead to unintentional system changes. - **Complexity of OT environments:** OT environments consist of a number of systems. Achieving uniform security practices across a varied environment is not an easy task. - **Compatibility with legacy systems:** Many OT environments include legacy systems that donā€™t support new security protocols. - **User training and awareness:** Effectively using remote access tools requires that users understand potential security risks and adhere to best practices. This can be a significant challenge, especially with a diverse user base that might not be aware of how to deal with [cyber attacks](https://www.g2.com/articles/cyber-attack). ### How to choose OT Secure Remote Access Software Choosing the right OT secure remote access software is crucial for the security of your operational technology procedures. Here are some factors to consider when selecting the appropriate remote access security software for your business. - **Assess your needs:** Clearly define what you require from the solution. Consider the size and difficulty of your OT environment, specific use cases (e.g., maintenance, monitoring, emergency response), and regulatory compliance requirements. - **Identify security needs:** Outline your security requirements, including encryption, multi-factor authentication, audit trails, and compliance with standards like IEC 62443 or NIST SP 800-82. Look for OT security solutions that meet your standards. Understand your current network infrastructure and determine how new software fits in. - **Compile a list of potential vendors:** Request information from these vendors and learn more about their work. This should cover all features, security protocols, hardware requirements, and integration capabilities. - **Conduct a risk assessment:** Determine which security components are non-negotiable. Consider the cost of purchasing and implementation, training, and maintenance. - **Review legal and compliance aspects:** Verify that the software contracts and [service level agreements](https://www.g2.com/glossary/sla-management) (SLAs) meet your legal requirements and compliance standards. - **Implement training and governance:** Once you've selected suitable OT security solutions, establish a solid training program for your users and set up governance frameworks to make sure everyone is using the software securely and effectively. ### OT Secure Remote Access Software Trends - **Endpoint security enhancements:** As more devices require remote access, youā€™ll find greater emphasis on securing each endpoint. This means using more security software solutions such as [endpoint detection and response (EDR) software](https://www.g2.com/categories/endpoint-detection-response-edr) and next-generation antivirus (NGAV) software, as well as patching devices and making them compliant with security policies before granting access. - **Zero-trust architecture:** This approach assumes that threats exist both outside and inside the network and thus tightens security controls around sensitive resources. Zero-trust strategies use the least privileged access, whereby users are given just enough access to the resources needed to perform their job functions and nothing more. - **Identity-centric security:** Security models have been focusing more on the identity of users as the primary security parameter. This requires strengthening access management and aligning roles with the requirements of remote users. - Edge computing and edge security: With the rise of the [internet of things (IoT)](https://www.g2.com/glossary/internet-of-things-definition) and the push to process data closer to where it's generated, i.e., at the [ā€edgeā€](https://www.g2.com/glossary/network-edge-definition) of the network, there is a parallel need to secure these systems, including protecting the data in transit and at rest. _Researched and written by_ [_Amal Joby_](https://learn.g2.com/author/amal-joby) _ļ»æReviewed and edited by_ [_Aisha West_](https://learn.g2.com/author/aisha-west)