DDoS / Featured Blogs

So Long, Farewell: The Worst DDoS Attacks of 2016

The year 2016 will go down in infamy for a number of reasons. It was the year an armed militia occupied an Oregon wildlife refuge, Britain voted to Brexit, an overarching event that will simply be referred to as The Election occurred, and Justin Bieber made reluctant beliebers out of all of us. 2016 was also the worst year on record for distributed denial of service (DDoS) attacks by a margin that can only be considered massive. more»

Blocking a DDoS Upstream

In the first post on DDoS, I considered some mechanisms to disperse an attack across multiple edges (I actually plan to return to this topic with further thoughts in a future post). The second post considered some of the ways you can scrub DDoS traffic. This post is going to complete the basic lineup of reacting to DDoS attacks by considering how to block an attack before it hits your network -- upstream. more»

Notes from NANOG 69

NANOG 69 was held in Washington DC in early February. Here are my notes from the meeting. It would not be Washington without a keynote opening talk about the broader political landscape, and NANOG certainly ticked this box with a talk on international politics and cyberspace. I did learn a new term, "kinetic warfare," though I'm not sure if I will ever have an opportunity to use it again! more»

Mitigating DDoS

Your first line of defense to any DDoS, at least on the network side, should be to disperse the traffic across as many resources as you can. Basic math implies that if you have fifteen entry points, and each entry point is capable of supporting 10g of traffic, then you should be able to simply absorb a 100g DDoS attack while still leaving 50g of overhead for real traffic... Dispersing a DDoS in this way may impact performance -- but taking bandwidth and resources down is almost always the wrong way to react to a DDoS attack. But what if you cannot, for some reason, disperse the attack? more»

Dispersing a DDoS: Initial Thoughts on DDoS Protection

Distributed Denial of Service is a big deal -- huge pools of Internet of Things (IoT) devices, such as security cameras, are compromised by botnets and being used for large scale DDoS attacks. What are the tools in hand to fend these attacks off? The first misconception is that you can actually fend off a DDoS attack. There is no magical tool you can deploy that will allow you to go to sleep every night thinking, "tonight my network will not be impacted by a DDoS attack." more»

Cyber-Terrorism Rising, Existing Cyber-Security Strategies Failing, What Are Decision Makers to Do?

While conventional cyber attacks are evolving at breakneck speed, the world is witnessing the rise of a new generation of political, ideological, religious, terror and destruction motivated "Poli-Cyber™" threats. These are attacks perpetrated or inspired by extremists' groups such as ISIS/Daesh, rogue states, national intelligence services and their proxies. They are breaching organizations and governments daily, and no one is immune. more»

Yahoo's 1 Billion Accounts Hacked is a Chilling Warning: Start Doing Things Differently or Die

Today, this is how easily "TRUST" by your users/customers can be shattered, your revenues devastated, your share value plunged into the abyss, and your business destroyed. Furthermore, conventional thinking belongs only in university libraries, not in board rooms. It is time to seriously consider other innovative Out-Of-The-Box Solutions and doing things differently, or start writing your business obituary. more»

Sledgehammer DDoS Gamification and Future Bugbounty Integration

Monetization of DDoS attacks has been core to online crime way before the term cybercrime was ever coined. For the first half of the Internet's life, DDoS was primarily a mechanism to extort money from targeted organizations. As with just about every Internet threat over time, it has evolved and broadened in scope and objectives. The new report by Forcepoint Security Labs covering their investigation of the Sledgehammer gamification of DDoS attacks is a beautiful example of that evolution. more»

NTP: The Most Neglected Core Internet Protocol

The Internet of today is awash with networking protocols, but at its core lie a handful that fundamentally keep the Internet functioning. From my perspective, there is no modern Internet without DNS, HTTP, SSL, BGP, SMTP, and NTP. Of these most important Internet protocols, NTP (Network Time Protocol) is the likely least understood and has the least attention and support. Until very recently, it was supported (part-time) by just one person. more»

Taking a Closer Look at the Recent DDoS Attacks and What it Means for the DNS

The recent attacks on the DNS infrastructure operated by Dyn in October 2016 have generated a lot of comment in recent days. Indeed, it's not often that the DNS itself has been prominent in the mainstream of news commentary, and in some ways, this DNS DDOS prominence is for all the wrong reasons! I'd like to speculate a bit on what this attack means for the DNS and what we could do to mitigate the recurrence of such attacks. more»