The security of control systems can be threatened from different aspects, with the end device being the most important attack vector. With this in mind, the IEC, within the 62443 standard, wanted to emphasise devices by preparing a document exclusively concerning their security: IEC62443-4-2. This document contains different technical requirements to improve the security of the types of assets that can be found in a control system.
This post presents some lines of action that should be followed to deal with a DrDoS cyberattack based on the SNMP protocol, describing in detail the prevention, identification and response phases to follow.