Network detection + investigation context
Intrusion Detection for Michigan businesses.
Intrusion Detection Systems help identify network activity that may require investigation. CTS can connect detection to the network design, security monitoring and the people responsible for the next step.
The business question
Know when network activity deserves a closer look.
Network visibility depends on where information is observed and what can be interpreted. A useful IDS discussion starts with the systems and traffic that matter, rather than assume the entire environment is visible.
A new connection appears between systems.
Detection can make that activity visible. Investigation still needs to establish whether it is expected business activity, a configuration change or something that requires action.
Define the service
What the relationship needs to cover.
The useful scope connects the technical capability with the people and operating work around it.
Placement and coverage
Identify where detection can provide relevant information about the environment.
Detection and tuning
Review useful signals and the operational noise that can obscure them.
Alert handling
Define who investigates findings and how the issue is escalated.
From discussion to operation
Make the next step explicit.
Start with the current environment, define the responsibility and agree on how the work will be reviewed.
- 01
Understand the network
Map relevant locations, traffic paths and system dependencies.
- 02
Define the detection use
Choose what the service needs to observe and which limitations need to be understood.
- 03
Connect to operations
Tie findings to monitoring, review and a practical response workflow.
An IDS generally identifies and alerts on activity; prevention capabilities are a separate design decision. Encrypted traffic and placement can limit visibility.
Questions before you decide
Understand what you are buying.
These distinctions help make the service conversation more useful.
Does IDS block the activity?
Detection and prevention are different capabilities. Confirm which actions the selected design can perform.
Will encryption affect visibility?
It can. Discuss what information remains visible and whether additional controls or telemetry are appropriate.
Where do alerts go?
The agreed service should specify the review destination, responsible team and escalation path.
Part of the wider environment
Connect the responsibilities.
This service works alongside other parts of your IT and security operating model.
Useful reading
Keep exploring the question.
Related CTS articles offer background and practical perspectives.
The 75-Cent Spy
Read more about the operating decisions behind this service.
Read the articleAre SSL VPNs Still Secure? Why Businesses Are Moving Beyond Them
Read more about the operating decisions behind this service.
Read the articleStart with your environment
Talk through intrusion detection with CTS.
Tell us what is changing, what concerns you and how the responsibility is handled today. We will help you identify a useful next step.