Patent · US Active

Recognizing deviations in security behavior of automation units

US11777967B2 · kind B2 · utility

0Cited by

3References

21Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Jens Makuth · Feucht, DE
Jürgen Schimmer · Koblenzer Straße, DE

Key dates

Filing date	Dec 3, 2019
Grant date	Oct 3, 2023
Priority date	—
Expiry date	Jan 2, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH04L67/12
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method, an intelligent switch, a device, and a network for recognizing deviations in communication behavior of the network are provided. Characteristics of communication are monitored and evaluated regarding security behavior of the network using a model of a communication behavior of the network. For each communication over a switch of the network, at most three security values are derived from communication metadata of the respective communication using the model of the communication behavior. For each communication, it is checked whether the respective at most three security values meet respective predetermined threshold values. When the respective predetermined threshold values are not met by at least one of the security values, a security warning is generated.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.