Belden has developed a patent for systems and methods implementing Intrusion Radiation Protection (IRP) to prevent malicious IP traffic in secure networks. The technology involves inspecting, classifying, and potentially modifying IP packets to prevent data exfiltration. GlobalData’s report on Belden gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Belden, IoT network security was a key innovation area identified from patents. Belden's grant share as of January 2024 was 60%. Grant share is based on the ratio of number of grants to total number of patents.

Preventing data exfiltration from secure network

Source: United States Patent and Trademark Office (USPTO). Credit: Belden Inc

A recently granted patent (Publication Number: US11888865B2) discloses a method and system for preventing data exfiltration from a secure network. The method involves receiving and inspecting internet protocol (IP) packets at a device in a secure network zone, determining if the packet complies with predetermined policies, identifying and removing any data that violates the format, and transmitting the packet if it meets the criteria. The system includes a processor and network interface for carrying out these functions, ensuring that data exfiltration attempts are thwarted effectively.

Specific scenarios are outlined in the patent claims, such as dealing with Domain Name System (DNS) packets, Internet Control Message Protocol (ICMP) packets, and Network Time Protocol (NTP) or Simple Network Time Protocol (SNTP) packets. The system is designed to detect unsolicited responses, messages exceeding certain lengths, and non-conformance with protocol standards, among other criteria. By logging and truncating payloads based on expected sizes and formats, the method and system provide a robust defense mechanism against unauthorized data exfiltration attempts. Overall, the patent details a comprehensive approach to safeguarding secure networks from potential breaches and data leaks, enhancing cybersecurity measures in an increasingly interconnected digital landscape.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.