OT security | part 3
In this last part, we will focus on 3 extra features that are very important to build a secure architecture: non-intrusive monitoring, asset inventory and threat detection.
When talking about OT environments, there are 2 crucial parameters: uptime and the availability of the systems. That’s why a monitoring solution should absolutely not have any impact on the workflow and processes within the organization. It’s important to prevent delays on the production process, since this inevitably leads to productivity loss and problems for the operational processes. The goal is a passive and non-intrusive monitoring solution beneficial to the organization and the employees. The benefits are two-sided:
- The solution can detect devices active on your network and warn you on time when a problem occurs.
- The solution can recognize weaknesses of the network and the endpoint devices potentially leading to damage if not handled adequately.
This way, the organization can detect issues even before they occur, while planning and performing maintenance without disturbing the systems.
An acurate and complete overview of the network and all connected devices and components provides valuable information to secure the network. It’s obvious why asset inventory forms an important feature to protect both your OT and IT systems.
Such a feature scans your network and maps which components are connected to your network, where they are located and how the communication between different devices takes place. A thorough overview of all assets on your network is not only valuable regarding security, but also helps you to check and guarantee every device is correctly patched and none is forgotten. If not, it could possibly endanger your company to potential attacks.
Threat detection & vulnerability scanning
Detecting risks, identifying potential vulnerabilities and continuous scanning for weaknesses cannot be overlooked when talking about OT security. No matter if a potential risk is the result of a human or malware, it has to be eliminated efficiently to limit the impact on your organization.
A few examples of vulnerabilities often found within OT networks:
- Unauthorized access by external partners
- Undocumented or unknown devices
- Vulnerable devices
- Weak firewall rules
This is only a short list of a few examples. Penetration testing makes a nice addition to your vulnerability scanning, and provides you with better insights in the current state of your security. In addition you will receive concrete action points to increase your level of security.
The difference between penetration testing and vulnerability scanning is simple: penetration testing focuses on a certain moment in time and provides you with insights in your current state of business, while vulnerability scanning is an ongoing process that never stops detecting.
Both principles combined offers you the best insights and protection.
How can we help?
Spotit offers profound penetration tests to provide you with better insights in your current level of protection. The results help you to eliminate concrete weaknesses to increase your overall level of security.
Next to penetration tests you can also count on spotit for non-intrusive monitoring tools, which we could integrate in our NOC and SOC.