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Firewalls and antivirus software are no longer sufficient in the face of increasingly sophisticated cyberattacks. Businesses require more intelligent methods for identifying and addressing network risks. Network Detection and Response (NDR) can help with this!
NDR solutions monitor network activity in real time. They use machine learning and behavior analysis to spot unusual activity, detect hidden threats, and respond quickly. This is especially important today, as networks span cloud, on-prem, and hybrid environments. Not all NDR solutions are the same, so knowing what to look for is important.
Important Characteristics of an NDR Solution
A strong NDR solution helps detect hidden threats and respond quickly across your network. Here are the key features to consider when evaluating an NDR solution:
Smart Anomaly Detection
Modern attacks are built to stay hidden. Tools that rely only on known threat signatures often miss them or generate too many alerts.
A good NDR solution should learn normal behavior and quickly flag unusual activity, such as unexpected data transfers, strange device communication, or spikes in encrypted traffic.
Example:
If large amounts of data start moving late at night, the system should flag it as unusual.
Why it matters:
This helps teams detect real threats faster and reduces unnecessary alerts. Over time, detection becomes more accurate.
Full Network Visibility
Many tools only monitor traffic coming in and going out of the network. This leaves internal activity untracked, which attackers often exploit.
An effective NDR solution should give visibility into both external and internal traffic. It should track movement across systems and work across cloud and on-prem environments. It should also analyze encrypted traffic without decryption.
Example:
If an attacker moves within the network, it should be detected early.
Why it matters:
Better visibility means fewer blind spots and less chance for threats to spread.
Fast Response and Threat Investigation
Detection alone is not enough. Quick action is critical.
A strong NDR solution should automatically respond to threats by isolating affected devices, blocking malicious activity, and containing the issue. It should also allow security teams to investigate further using detailed network data.
Example:
A compromised device is isolated immediately while the team looks deeper into the issue.
Why it matters:
Faster response reduces damage and makes security operations more efficient.
Easy Scalability
Some NDR tools are costly and difficult to expand as your organization grows.
A better approach is to use solutions that are cloud-based and designed to scale easily. These solutions avoid heavy storage requirements and work well with modern environments like VMware and Kubernetes.
Example:
As your business grows, the solution scales without requiring new hardware.
Why it matters:
You can grow your network without increasing complexity or costs.
Strong Forensics and Threat Context
After an incident, understanding what happened is critical.
An effective NDR solution should display the attack’s origin, its spread, and the systems it impacted. It should also store historical data to support deeper analysis.
Example:
After an attack, you can review a clear timeline and identify weak points.
Why it matters:
This enhances overall security and helps stop similar issues in the future.
Clear and Useful Alerts
Too many alerts without context can slow teams down and lead to missed threats.
Clear notifications with helpful information like which user or device is involved, the severity of the threat, and the necessary actions should be provided by an efficient NDR system.
Example:
You receive a detailed explanation of the problem and its level of risk rather than a simple notice.
Why it matters:
Teams can respond faster and focus on what matters most.
Easy Integration with Existing Tools
Security tools work better together.
Your NDR should integrate with SIEM, EDR or XDR, firewalls, and access controls to combine data into one clear view.
Example:
Network data and endpoint alerts come together to show the full picture of an attack.
Why it matters:
Better integration improves visibility and speeds up response.
How to Get the Most Value from NDR
To make the most of your NDR solution:
- Use external threat intelligence to stay updated on new risks
- Regularly update and fine-tune detection models
- Segment your network to limit how far attacks can spread
- Connect NDR with other security tools for better visibility
- Train your team to use the platform effectively
These steps help improve detection and response over time.
Final Checklist
Before choosing an NDR solution, make sure it:
- Monitors both internal and external traffic
- Detects unusual behavior accurately
- Responds to threats quickly
- Works well with your existing tools
- Scales easily as your organization grows
- Provides strong investigation and reporting features
- Delivers clear and actionable alerts
Conclusion
Choosing the right NDR solution is simple. Focus on visibility, detection, response, and ease of use.
You can identify risks sooner, react more quickly, and gradually strengthen and fortify your security posture with the correct solution. A strong NDR solution like Fidelis Network® helps make this possible.
FAQs
What is NDR and how does it work?
NDR is a security system that monitors network traffic in real time and detects unusual activity using AI and behavior analysis.
How is NDR different from traditional antivirus and firewalls?
NDR detects hidden and unknown threats, while antivirus and firewalls mainly focus on known threats.
Why is smart anomaly detection important in NDR?
It learns normal network behavior and quickly identifies unusual activity while reducing false alerts.
Does NDR work in cloud and hybrid environments?
Yes, modern NDR solutions can monitor cloud, on-premise, and hybrid environments effectively.
What are the benefits of Fidelis Network®?
Fidelis Network® provides deep visibility, fast threat detection, and automated response to strengthen network security.
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