In the ever-evolving world of cybersecurity, network observability has become a crucial to defending against increasingly sophisticated cyber threats. But what exactly is network observability, and why is a well-tailored and efficient network visibility solution so essential to maintaining a robust security posture?
Defining Network Observability
At its core, network observability refers to the ability to see, understand, and monitor the data that flows across a network in real time. It provides insight into every device, connection, and communication happening on the network, both internally and externally. A strong visibility solution enables network security teams to detect suspicious and anomalous activities, identify performance issues, and respond to cyber threats before they can cause significant damage.
Network Observability Improves Security
At its core, network observability refers to the ability to see, understand, and monitor the data that flows across a network in real time. It provides insight into every device, connection, and communication happening on the network, both internally and externally. A strong visibility solution enables network security teams to detect suspicious and anomalous activities, identify performance issues, and respond to cyber threats before they can cause significant damage.
- Early Threat Detection: Comprehensive network visibility allows security teams to spot abnormal patterns, such as unauthorized access or unusual data transfers, that may signal a cyber-attack. Early detection is crucial in preventing potential breaches.
- Incident Response: When a cyber incident occurs, full visibility of the network enables a quicker response. Security teams can trace the attack’s path, isolate the threat, and minimize the impact on the business.
- Compliance: Many industries require strict regulatory compliance regarding data security. Network observability provides the necessary logs, metrics, and reports to demonstrate compliance with these standards.
- Optimization and Performance: Observability isn’t just about security—it also improves network performance. Monitoring network traffic helps identify and resolve performance bottlenecks, ensuring that business-critical applications run smoothly.
Challenges of Poor Visibility
Along with immense quantities of data and increasing speeds, attack surfaces are also growing exponentially. This could open up new vulnerabilities unbeknownst to the group tasked with monitoring the network.
Other visibility challenges are:
Encrypted Traffic: As more data is encrypted, inspecting that traffic without compromising privacy or performance is complex. Cyber security data analysts are using TLS and QUIC fingerprinting methods such as JA3, JA4, RDPF, etc to characterize suspicious traffic hidden behind common encryption protocols.
East-West Traffic: Monitoring internal traffic (East-West) between devices within the same network can be more costly than monitoring North-South traffic (coming into or leaving the network). This is due to the sheer volume that East-West traffic typically produces internal to an organization’s network.
Cloud Environments: The dynamic and distributed nature of cloud infrastructures creates challenges in monitoring and securing network traffic across different environments, complicating the task of gaining a unified view of network activity.
How To Combat These Challenges
Network monitoring has become a 24/7 job, as committed hackers armed with detailed ransomware and complex botnet campaigns work continuously to disrupt critical infrastructure. It is crucial to have a network observability solution that not only monitors but hunts for threats and tracks trends in network traffic that appears suspicious.
The NetQuest Streaming Network Sensor (SNS) product line provides unmatched performance for generating unsampled flow-based metadata for meeting high-scale, complex visibility needs. This makes the SNS a reliable data source for security tools that require accurate and dependable network intelligence.
NetQuest’s Streaming Network Sensor helps network security teams proactively detect advanced threats and indicators of compromise (IoC) byanalyzing encrypted traffic and exposing layer 7 applications within each network conversation.By optimizing visibility, threat hunting teams are armed with the information they need to detect and respond to real-time threats and security breaches.
To learn more about NetQuest’s Streaming Network Sensor and how it can optimize your team’s observability solution, click here