DDoS Protection

November 4, 2025

What Is Port 53 and Its DDoS Attack Risk?

Learn how to protect your organization from DNS port 53 DDoS attacks with actionable strategies, including query limits, traffic filtering, and redundant networks. Keep your DNS fast, reliable, and secure under any threat.

UltraDDoS Protect DDoS Bot Cluster Analysis

DigiCert’s 2025 DDoS Bot Cluster Analysis reveals how 16M bots operate in synchronized patterns, exposing global threats and defense insights.

Zero-Day Vulnerabilities

Zero-day vulnerabilities explained: how attackers exploit unknown flaws—and how to mitigate risk with rapid patching, virtual patching, WAFs, zero-trust, and monitoring.

TCP Floods

TCP floods exploit vulnerabilities in connection protocols to exhaust resources and disrupt networks. Learn how to detect, prevent, and mitigate these DDoS attacks.

Sockstress

Sockstress is a low-and-slow TCP DoS that drains server resources and evades detection. Learn its mechanics and proven defenses to protect uptime and revenue.

October 29, 2025

DigiCert’s Open-Source Intelligence (OSINT) Report – October 17 – October 23, 2025

Explore new global cyber threats—from TikTok infostealers and Citrix exploits to .NET CAPI backdoors and COLDRIVER malware targeting critical sectors.

Ransom DDoS

Discover how ransom DDoS attacks threaten to take services offline for payment and learn key strategies to detect, prevent, and mitigate these extortion threats.

Multi-Vector DDoS Attacks

Learn how multi-vector DDoS attacks combine multiple methods to overwhelm networks and discover advanced strategies to detect, mitigate, and prevent them.

IP NULL DDoS Attacks

Discover how IP NULL DDoS attacks exploit network protocol flaws, disrupt critical systems, and learn key strategies to detect, mitigate, and prevent them.

High Orbit Ion Cannon

Learn how the High Orbit Ion Cannon (HOIC) DDoS tool works, its impact on businesses, and key strategies to prevent and mitigate cyber attacks effectively.

Blackhole Routing DDoS Defense

Remotely-Triggered Black Hole (RTBH) routing rapidly blocks DDoS traffic by dropping malicious packets before they reach targets. Learn how it works and why it matters.

October 21, 2025

DigiCert’s Open-Source Intelligence (OSINT) Report – October 10 – October 16, 2025

Recent cyberattacks include pro-Russian hackers stealing OT/ICS logins, record DDoS botnets, RDP exploits, and massive Clickfix domain abuse via Cloudflare.

DigiCert Resources

DDoS Protection Resources

Vercara: A Leader in Securing Online Experiences

Webinar: WAAP is Here to Stay: Combining API Protection and Cloud Application Security

Weekly Updates on the Cyber Threat Landscape

Cybersecurity Insights That Are Ahead of the Curve

Weekly Updates on the Cyber Threat Landscape

Cybersecurity Insights That Are Ahead of the Curve

Weekly Updates on the Cyber Threat Landscape

Cybersecurity Insights That Are Ahead of the Curve