NoName Attack Pattern
Insights and usecases by zeroBS
What is DDoS / an DDoS attack?
A briefing for our clients
In Plain Terms
Picture a small storefront that suddenly finds itself packed with thousands of people crowding through the door — none of them there to buy anything, all of them just standing in the way. Real customers can’t reach the counter, staff can’t keep up, and eventually the shop has to turn everyone away just to catch its breath.
A Distributed Denial-of-Service (DDoS) attack does the same thing to a website, application, or online service. An attacker floods it with an overwhelming volume of fake traffic from many sources at once, until legitimate users simply can’t get through.
Not All Attacks Look the Same
Broadly, DDoS attacks fall into two categories. Volumetric attacks aim to flood the network connection itself – the “pipe” carrying traffic in and out – with more than it can handle, regardless of what’s running on it. Application-layer (Layer 7) attacks are more surgical, targeting a specific application or service directly, often mimicking normal user behavior to slip past basic defenses.
Both matter, but the second brings a side effect that’s easy to overlook: shared infrastructure. Many applications sit behind the same load balancer or gateway.
An attack aimed at overwhelming just one application can exhaust that shared resource — and take other, unrelated services down along with it. In practice, this means an organization can be disrupted without ever being the intended target.
Why This Matters to the Business
The technical mechanics matter less than the outcome: when a DDoS attack succeeds, the service goes down or slows to a crawl for real customers. That translates directly into:
- Lost revenue for every minute of downtime, especially for transaction-based services
- Damaged customer trust — outages are visible, and they’re remembered
- Missed SLAs and contractual exposure, particularly for client-facing platforms
- Strain on support and operations teams scrambling to respond
- Potential regulatory or reporting obligations, depending on sector and severity
None of this requires a data breach or stolen information. A DDoS attack doesn’t need to get inside your systems to cause serious harm — it just needs to make them unreachable.
"No One Is Too Small to Be a Target"
It’s a common assumption that DDoS attacks are reserved for large, high-profile organizations. That’s no longer accurate. Attacks today are frequently indiscriminate, opportunistic, or automated — scanning for any exposed, poorly defended target regardless of size or industry. Others are competitively or personally motivated, aimed deliberately at a specific business. Every organization with an online presence is a plausible target, not just the recognizable ones.
A Fundamentally Uneven Fight
Perhaps the most important thing to understand is the imbalance at the heart of this threat. Launching a DDoS attack today requires very little skill, money, or time — attack capacity can be rented cheaply, and automated tools do most of the work. Defending against one, by contrast, requires real infrastructure, monitoring, and investment, sustained continuously over time.
This asymmetry is why DDoS remains a persistent risk regardless of how mature an organization’s security posture is. A small amount of effort on the attacker’s side can produce disproportionate disruption on the receiving end — and that imbalance isn’t likely to change.
What This Means in Practice
This isn’t a call to alarm — it’s a call to preparedness: DDoS risk is best treated as a “when,” not an “if.” Organizations that plan ahead – through mitigation services, traffic monitoring, and response procedures – experience dramatically shorter, less costly disruptions than those caught off guard.
In Short
DDoS attacks are common, cheap to launch, and can affect any organization — including through infrastructure you share with others. Understanding that risk is the first step; having a plan in place is what determines the outcome when it happens.
Check out our related article ...
"A DDoS attack is as easy as breaking a window..."
18. März 2026 – Interview from Laura Kaltenbrunner, CERTAINITY, with Markus Manzke, CTO / zeroBS
You are under DDoS-Threat, by NoName or others?
Our DDoS Threat Simulation Platform „Avydos“ is the platform of choice for automated DDoS testing. Built as a self-service cloud platform with 24/7 availability, it gives you full control to run DDoS simulations whenever you need them - quickly, independently, and without external dependencies.
The platform covers all attack vectors, from high-volume Layer 3/4 attacks to sophisticated Layer 7 application attacks, including both single and multi-vector combinations. This broad coverage helps to uncover weaknesses in defenses that simpler tests often miss.
At the same time, Avydos is perfectly designed to support compliance efforts. It helps organizations meet requirements under DORA, NIS2, and similar regulations by providing continuous, documented resilience testing and clear reporting that auditors and regulators expect.
Avydos DDoS Threat Simulation and Automation Platform: https://avydos.com/en/
zeroBS DDoS Testing Services: https://zero.bs/en/
English 
German