Don’t let your Firewalls be STUN DDoS Reflector

Your firewalls can be used as a STUN DDoS reflector to attack others on the Internet. Open UDP firewall ports for STUN (Session Traversal Utilities for NAT) are being exploited for DDoS reflection. Your network is most likely one of those networks. Shadowserver now detects 101k IPv4 and 2.9K IPv6 accessible UDP STUN services. These Read More

Why are you leaving your SNMP ports open to the world?

Too many organizations are ignoring the risk of SNMP abuse and leaving their SNMP ports open to the world. Simple Network Manage Protocol (SNMP) is one of our core networking building blocks. We – the community who build and run networks – use all types of networks. It is a powerful tool for monitoring, managing, Read More

DDoS Resiliency Workshop – 2022

Revised, Updated, and Enhance DDoS Resiliency Workshops for Today’s Internet In the late 1990s, several people started teaching ISPs how to protect their networks from attack. These early “DDoS Resiliency Workshops” evolved in a consistent theme and method that eventually curated best common practices for DDoS resiliency. Unfortunately, the threats from attacks to Communications Services

You are now part of the Russian-Ukrainian Cyberwar’s “Battlespace”

It is 2022 and you are now part of the Russian-Ukrainian Cyberwar’s “Battlespace.” There is no escaping the “packets” flying through, at, and over your network. If you live on planet Earth, you are now part of the Russian-Ukrainian cyber-battle space. What is a cyber warfare “battlespace?” A “battlespace” is the location of the warfighting. Read More

1 Yottabyte DDoS Attack – The Biggest DDoS Attack in History!

No, a yottabyte DDoS attack has not happened. Someday we will have a yottabyte DDoS, just not today. Tomorrow we will have another press release on “the largest DDoS attack ever.” Will that be important? No, bragging about the size of DDoS Attacks is a distraction to the realities of the Internet and the real Read More

DDoS Attack Preparation Workbook

Internet DDoS Attacks are a force of nature on the Internet. They are like earthquakes, hurricanes, floods, tornados, tsunamis, and all other disasters. Organizations need to prepare for a DDoS Attack the same way they prepare for severe weather and natural disasters. These guides have been crafted based on my personal experience (+25 years of

DDoS Extortionist’s Behaviors

Smart and prepared organizations use DDoS Extortionist’s Behaviors as a Defensive Tool. We have a long history of DDoS Extortionists. In the early 2000s, we had DDoS Extortionists who would threaten “gambling sites” with a DDoS Attack 30 minutes before a match. This crew was later tracked by law enforcement and arrested. DDoS Extortion has

Are you part of the DDOS Problem?

Yes, your network, your service provider, and your government can be actively contributing to the global Denial of Service (DoS) epidemic! DoS attacks come in two “families.” The first DoS family are from tools which are launched from infected, violated, and penetrated devices on the Internet. There “remote controlled” by the attackers to hit a Read More

Everyone should be deploying BCP 38! Wait, they are ….

Have you deployed BCP 38 in your network? For most networks, the answer is yes. During last week’s FCC CSRIC III meeting, several people called on operators to deploy “BCP 38.” This IETF best common practice (BCP) is packet filter placed on the edge of networks to insure that the IP source cannot pretend to Read More

NSP-SEC Top 10 SP Security Techniques – Updated Slides

NSP-SEC Top 10 SP Security Techniques is one of the core foundation tutorials for ALL Telcos, ISPs, Cloud Operators, Mobile Companies, and other large ASNs (including Enterprises).  This is the foundation for network security. If you are being stupid if not doing these basics and trusting your “firewall.” Note though this that all the recommendations Read More