Security breakthrough for OPC-based industrial automation
21 September 2010
Byres Security has released the Tofino OPC Enforcer firewall, part of the Tofino Industrial Security Solution. This module locks down any industrial network using the previously hard to secure OPC Classic protocol. Using deep packet inspection firewall technology, the Tofino OPC Enforcer provides superior security over what can be achieved with conventional firewall solutions. The result is improved network reliability, availability and security for any process control or SCADA company using OPC

Security breakthrough for OPC-based industrial automation
OPC Classic is widely used in control systems as an interoperability solution, interfacing control applications from multiple vendors. Unfortunately, as numerous studies show, the technologies underlying it were designed before network security issues were widely understood. As a result, OPC Classic has been almost impossible to secure until now.
The Tofino OPC Enforcer provides robust security and stability for any system using OPC DA, HAD or A&E, thus preventing industrial network attacks and accidents. Unlike other firewalls, this product inspects, tracks and secures every connection made by an OPC application, opening only the exact TCP port required for a connection between an OPC client and server.
It is implemented without any control system changes. The Tofino hardware is simply installed into the live network and configured using a drag and drop editor to select permitted clients and servers. Once installed, network security is assured, with all OPC traffic managed behind the scenes.
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