October 17, 2025
R-U-Dead-Yet? DoS
Learn how R.U.D.Y. low-and-slow HTTP POST attacks exhaust web apps via Content-Length abuse, plus detection and defense with timeouts, WAFs, and rate limits.
DigiCert Team
Articles by DigiCert Team
October 17, 2025
QUIC Flood DDoS
Learn how QUIC flood DDoS attacks exploit speed and encryption to overwhelm servers, and discover strategies to defend against this rising cyber threat.
October 8, 2025
Ping of Death Denial of Service (DoS) Attack
Discover how Ping of Death DoS attacks crash systems with oversized packets, their history, impacts on business, and modern strategies for defense.
October 8, 2025
Multicast DNS (mDNS) Amplification DDoS
Learn how mDNS amplification DDoS attacks exploit misconfigured devices, amplify traffic, and threaten networks, plus steps to protect your systems.
October 8, 2025
IP Fragmentation Attacks
Learn how IP fragmentation attacks exploit network vulnerabilities to bypass security, overload systems, and cause service disruptions. Discover how to mitigate these risks.
October 7, 2025
2025 DDoS Biannual Report: Law Enforcement Delivers a Blow to Attackers
Discover 2025 DDoS trends, law enforcement impacts, and expert strategies from DigiCert to defend against evolving, targeted cyber threats.
October 6, 2025
CDN Routing for a Multi-CDN Architecture
In a multi-CDN architecture each CDN has its own routing strategy so CDN routing is critical for optimizing performance.
October 2, 2025
IP Booters and Stressers
Learn how IP booters and stressers enable easy DDoS attacks, real-world examples like Webstresser.org, and key defenses to protect your business.
October 2, 2025
Mirai Botnet
Learn how the Mirai botnet hijacks insecure IoT devices for massive DDoS attacks, real-world incidents like Dyn, and key steps to defend your business.
October 2, 2025
Memcached Amplification
Explore how memcached amplification attacks generate massive DDoS traffic from misconfigured servers, their business impact, and key prevention strategies.
October 2, 2025
Low Orbit Ion Cannon (LOIC)
Discover how Low Orbit Ion Cannon (LOIC) enables easy DDoS attacks, real-world examples of its misuse, and key strategies to protect your business.
October 2, 2025
L2TP Amplification DDoS Attacks
Learn how L2TP amplification DDoS attacks exploit tunneling protocols to overwhelm networks, their business impact, and key strategies for prevention.