City of Raleigh SCADA security manager for Raleigh, NC, deploys Indegy network monitoring tool. The city considered developing a solution in-house using open source tools, but concluded that would be too time-consuming. Worley wanted the ability to actively query programmable logic controllers at water treatment plants to discover any changes in programming logic by an employee, a systems integrator, or a malicious third party. The monitoring tools creates an audit trail of all changes, making it easy to trace back security incidents to their root cause.”]