ForeScout Technologies. has been granted a patent for a method that detects MAC address spoofing. The system identifies spoofed MAC addresses by comparing communications across different network devices and timestamps, enabling responsive actions to mitigate potential security threats. GlobalData’s report on ForeScout Technologies gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on ForeScout Technologies, was a key innovation area identified from patents. ForeScout Technologies's grant share as of June 2024 was 47%. Grant share is based on the ratio of number of grants to total number of patents.

Mac address spoofing detection and response system

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

The patent US12028371B2 outlines a method and system for detecting and responding to MAC address spoofing in network devices. The method involves accessing MAC addresses associated with communications on different ports of network devices, along with their respective timestamps. By comparing these addresses and timestamps, the system identifies instances where a second device is spoofing the MAC address of a first device. The detection criteria include a match between the MAC addresses, differing ports, and a time threshold between the communications. Upon identifying a spoofing event, the system can perform actions such as blocking communication on the affected port, which can be executed by various network devices including switches, routers, and firewalls.

Additionally, the patent describes processes for clearing records associated with the identified MAC addresses after the spoofing event, ensuring that the network remains secure and efficient. The system is designed to operate without user interaction, enhancing its effectiveness in real-time network monitoring. It also includes provisions for accessing additional communication information related to the involved MAC addresses, further supporting the detection and response mechanisms. The method is compatible with authentication protocols like 802.1X, and the implementation can be facilitated through a non-transitory computer-readable medium containing the necessary instructions for execution. This innovation aims to bolster network security by proactively addressing potential MAC address spoofing threats.

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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.