A network telescope is a tool used in network security to monitor and analyze traffic patterns, particularly from unused or underutilized IP address spaces. By observing traffic in these “dark” areas, security teams can detect unusual or potentially malicious activity, such as DDoS attacks, botnets, or unauthorized access attempts. The telescope passively collects data to identify these anomalies without actively participating in the network, making it a powerful tool for threat detection.
The primary use of a network telescope is to provide early warnings about emerging cybersecurity threats. By analyzing abnormal traffic, it helps security professionals understand attack patterns and mitigate risks before they escalate. In addition to DDoS mitigation, network telescopes play a crucial role in detecting other types of cyber threats, improving overall network defense and helping to safeguard systems from ongoing or future attacks.