Why NDR is Critical in a Zero Trust Architecture

Since the number of cyber attacks becomes increasingly advanced and sophisticated, nowadays, a lot of organizations tend to use Zero Trust Architecture to protect their security infrastructure. The idea of Zero Trust lies in the single basic principle that goes like “never trust, always verify”. All users, devices, applications, and even network connections need constant verification regardless of whether they operate inside or outside an organization.

Although Zero Trust Architecture decreases unauthorized access threats, it cannot be used as the only security solution. This is why it is crucial to use **Network Detection and Response (NDR).**

Understanding NDR

Network Detection and Response is a cybersecurity technology that uses the monitoring of network traffic for the detection of any suspicious activities or malicious behavior, or possible security breaches. NDR uses analytics, machine learning, and behavioral analysis to be able to detect some of those threats that traditional technologies might miss.

Unlike signature-based solutions, NDR is good at detecting anomalies and unusual communications, thus being efficient against **advanced persistent threats (APTs)**, insider threats, ransomware, and zero-day attacks.

Why NDR Matters in a Zero Trust Environment

**Zero Trust is based on the idea that breaches will happen at some point. As such, continuous monitoring of the environment for any breach attempts becomes a necessity. [Network Detection and Response](https://www.netwitness.com/resources/data-sheets/nw-network-detection-and-response/?utm_source=Medium&utm_medium=referral&utm_term=NDR)** helps in achieving this goal.

[embed]Attackers Hide for 204 Days — How NetWitness NDR Cuts Dwell Time to Hours

Why NDR is Important to Zero Trust

• Constant Monitoring: NDR constantly monitors and analyzes network traffic looking for any suspicious activity, which meets the requirement of continuous verification in Zero Trust.
• Visibility for East-West Traffic: In many cases, attackers attempt to move across the network after the initial attack. NDR can help in discovering unauthorized access in the network.
• Threat Discovery Beyond Endpoints: While endpoint security products focus on the device itself, NDR can help in identifying potential threats at the network level.
• Ability to Detect Insider Threats: Insider threat actors can bypass security measures. NDR discovers any suspicious behavior and access in the network.
• Quick Response to Incidents: Automatic alerts and investigation capabilities allow responding to any threats instantly.
• Validation of Micro-Segmentation: Micro-segmentation is an important element of the Zero Trust architecture. NDR verifies if the micro-segmentation measures are actually working.

Strengthening Zero Trust with NDR

The success of Zero Trust architecture is predicated on visibility and validation. Despite the implementation of robust identity management solutions, multifactor authentication, and least privilege access principles, attackers can still infiltrate using compromised identities, flaws in the software, and compromised endpoints.

NDR acts as a key element in detecting threats via network behavior analysis, enabling one to prove a decision made on trust. This tool can help the security team in finding anomalies within the channels of communication, command and control operations, data exfiltration, and lateral movements. NDR additionally offers useful insights, which can be used in SIEM, SOAR, and XDR tools.

Furthermore, NDR generates actionable insights that can be integrated with Security Information and Event Management (SIEM), Security Orchestration, Automation, and Response (SOAR), and Extended Detection and Response (XDR) platforms, creating a more comprehensive security ecosystem.

Conclusion

Zero Trust Architecture seeks to establish a system that trusts less and exposes fewer attack surfaces; however, it’s not enough to be defensive in today’s environment. For this reason, organizations must have capabilities for detecting and responding to potential threats which bypass the first security controls. **Network Detection and Response **allows them to do so continuously and effectively.

When an organization adopts both Zero Trust and NDR technologies, it can create a robust cybersecurity approach which doesn’t just prevent but also detects and responds to any attacks.