In Q3 2023 [1] [2] [3] [4], the banking industry faced a significant increase in Distributed Denial of Service (DDoS) attacks, making it the most targeted vertical [1] [2] [4]. Lumen Technologies released data highlighting the severity of these attacks, with one banking customer experiencing over 230 DDoS attacks in a single day [1] [3] [4]. However, Lumen’s multi-layered approach to DDoS mitigation successfully prevented any downtime for the customer [2].


Lumen Technologies’ comprehensive DDoS mitigation strategy includes network countermeasures and intelligent routing technology. Their Rapid Threat Defense [3] [4], an additional layer of protection [4], effectively blocks DDoS botnet traffic and played a crucial role in thwarting these attacks. The report identifies four attack vectors used in these incidents: DNS Amplification, IP Fragmentation [3], Invalid Packets [3], and Static Filtering [3]. Lumen’s DDoS mitigation platform demonstrated its ability to identify and halt these attacks.

Throughout Q3 2023, Lumen effectively mitigated a total of 4,217 attacks, marking a 23% decrease compared to the previous quarter and a 24% decrease compared to the previous year. Additionally, the banking industry faced a significant number of application threats, with a substantial portion of blocked traffic originating from programmatic access attempts. The report emphasizes the importance of implementing bot protection measures and maintaining industry-specific threat awareness.


The surge in DDoS attacks on the banking industry in Q3 2023 highlights the need for robust cybersecurity measures. Lumen Technologies [1] [2] [3] [4]’ multi-layered approach and Rapid Threat Defense successfully prevented any downtime for their banking customer. The decrease in attacks compared to previous periods demonstrates the effectiveness of their DDoS mitigation platform. Moving forward, it is crucial for the banking industry to prioritize bot protection measures and stay vigilant against evolving threats. Lumen Technologies, with its secure and seamless connectivity, continues to deliver these capabilities through its robust network strength.