Description: The term ‘Unknown’ in the context of DDoS (Distributed Denial of Service) protection refers to traffic patterns or attacks that are not recognized by mitigation systems. This can significantly complicate efforts to identify and neutralize threats, as defense mechanisms are typically designed to respond to known and predefined traffic patterns. The nature of DDoS attacks involves flooding a server, service, or network with malicious traffic, which can lead to service disruption. When an attack is classified as ‘unknown’, it means that detection algorithms cannot categorize the traffic as benign or malicious, making it difficult to implement effective countermeasures. This situation can arise due to the constantly evolving tactics of attackers, who may use novel techniques or combinations of traffic that have not been previously documented. Identifying unknown patterns is crucial for improving the resilience of digital infrastructures, as it allows organizations to adapt their defense strategies and stay one step ahead of attackers. In an environment where cybersecurity is increasingly critical, the ability to recognize and respond to unknown traffic patterns becomes an essential component of any DDoS protection strategy.