How can you stay current with the latest PLC programming security threats?

1 Understand the PLC attack vectors

To prevent PLC security breaches, it is important to identify the possible ways that hackers can target them. Common attack vectors include remote access, which can be exploited through vulnerabilities in network protocols, software, or hardware; malware that can alter the PLC logic, steal data, or cause physical damage; and physical access, which can be achieved by breaking into the facility, bypassing security measures, or using insider information. With physical access, hackers can tamper with the PLC hardware, firmware, or memory.

3 Learn from the PLC security incidents

The third step to prevent PLC security breaches is to learn from the PLC security incidents that have occurred in the past or present. Examples include Stuxnet, a sophisticated malware that targeted PLCs in Iranian nuclear facilities in 2010, manipulating the PLC logic to cause physical damage; Triton, a malware that targeted a petrochemical plant in Saudi Arabia in 2017, attempting to disable safety systems; and EKANS, a ransomware that targeted PLCs in several industrial sectors in 2020, encrypting data and files on the PLCs and other devices. By studying these incidents, you can gain insight into the methods, motives, and impacts of the hackers, as well as the lessons, recommendations, and solutions of the experts. This knowledge can then be used to test and strengthen your own PLC security posture and resilience.

4 Join the PLC security community

The fourth step to prevent PLC security breaches is to join the PLC security community and network with other PLC programmers, operators, managers, researchers, and vendors. By doing so, you can stay up-to-date on the latest news, trends, reports, alerts, and resources on PLC security issues and developments. You can also share your experiences, challenges, and solutions with your peers and colleagues while receiving feedback, advice, and support from other PLC security professionals. Moreover, you can collaborate and innovate with other stakeholders on projects, initiatives, and events that aim to enhance the PLC security awareness, education, and practice. There are many ways to join the PLC security community such as online forums, blogs, podcasts, webinars, newsletters, social media or events.

5 Develop the PLC security mindset

The fifth step to prevent PLC security breaches is to develop the PLC security mindset and culture in your organization and yourself. This attitude and approach values and prioritizes PLC security as an integral part of programming and operation. To foster the PLC security mindset, you can educate and train yourself and your team on security fundamentals, standards, and guidelines. You can also assess and improve your policies, procedures, and practices regularly, using tools, frameworks, or audits to measure your performance and maturity. Communicate your goals, plans, and results to stakeholders such as management or customers. Use metrics, dashboards, or reports to demonstrate your efforts and investments. PLC programming security is a complex field that requires constant vigilance and adaptation. By following these tips, you can stay aware of the latest threats and protect your systems from hackers.