What is one of the major disadvantages of using ICS wireless systems?

The choice indicating that DoS (Denial of Service) attacks are easier to execute accurately highlights a significant disadvantage of using wireless systems in Industrial Control Systems (ICS). Wireless communication in ICS often lacks the robust security measures that their wired counterparts inherently possess. This vulnerability makes wireless systems more susceptible to various types of attacks, including DoS attacks.

In a DoS attack, the objective is to disrupt the normal functioning of the system by overwhelming it with requests or exploiting vulnerabilities within the wireless protocols. Attackers can target the communication channels used by these ICS wireless systems, leading to significant interruptions in service, which can translate to operational downtime or even safety hazards in industrial environments.

Using wireless solutions inherently introduces challenges related to interference and unauthorized access, which can be exploited by malicious actors. As a result, maintaining the integrity and availability of ICS operations becomes more complex in wireless implementations.

Understanding the implications of these vulnerabilities is crucial for anyone involved in the security of industrial systems. It underscores the necessity for robust security practices and continuous monitoring to mitigate risks associated with wireless communication in sensitive industrial environments.