Case Study – Water Facility, Filtration, and Sewer

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case study

Julie Security helps a water filtration and sewer protect its facility against Cyber-attacks on its Operational networks and maintain a secure operation. 

Objectives

  1. Gain visibility into the network and all assets. 
  2. Detect and alert on OT & IT cyber threats. 
  3. Anomaly detection. 
  4. Continuous monitoring. 

Challenges

  1. No network segmentation.
  2. Compliance with regulations (AWIA). 
  3. Lack of visibility of asset. 
  4. Inbound and outbound connections to the internet on the operational network. 
  5. High number of vulnerabilities. 
  6. End of life assets – which are not supported anymore by vendors. 

Solution

  1. Network segmentation. Segment assets which have different operation. For example: restrict access of workstations and cameras from controllers, in order to prevent lateral movement of an attacker on the network. 
  2. Configure the firewall well, because the operational network is using the internet. 
  3. Network Monitor and traffic analysis with Julie Security Intrusion Detection. 
  4. Blocking and restricting communication to the internet for devices in the operational network. 
  5. Handle vulnerabilities that were reported.
  6. Avoid lateral movement of attackers to the rest of the network of hackers by configuring firewall rules. 
  7. Reconfigure assets due to IPV6 and not relevant communication. 
  8. Segment network to reduce and balance network traffic. 

 

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