IoT Devices Using CoAP Increasingly Used in DDoS Attacks

IoT devices in synchronised attacks on targets represent a growing part of global Distributed Denial of Service (DDoS) weapon arsenals. There is a significant potential for attackers to use an IoT-related protocol, the Constrained Application Protocol (CoAP), deployed on IoT devices to marshal attacks.

The A10 Networks report on the state of DDoS weapons in the first quarter of 2019 examines the types of weapons and attacks being used and where they are coming from. While the most prevalent types of weapons leverage other more established technologies and internet protocols, such as the Network Time Protocol (NTP), Domain Name System (DNS) resolvers, and the Simple Services Discovery Protocol (SSDP), CoAP-based devices represent a fast-emerging new weapon type in botnet arsenals.

Book a demo today to see GlobalDots is action.

Optimize cloud costs, control spend, and automate for deeper insights and efficiency.

Book a demo today to see GlobalDots is action.

The most common type of attack utilising many of these weapons is a reflective amplification attack through which attackers spoof a target’s IP address and send out requests for information to vulnerable servers that then send amplified responses back to the victim’s IP address overwhelming the capacity of the target’s servers.

CoAP is a lightweight machine-to-machine (M2M) protocol that can run on smart devices where memory and computing resources are scarce. From a DDoS perspective CoAP is a protocol which is implemented for both TCP and UDP and does not require authentication to reply with a large response to a small request. The latest A10 Networks report found that over 400,000 of the weapons are being used in attacks.

A close-up view of a computer keyboard highlighting the keys labeled 'DDOS' and 'Attack' in orange.

Read more: Help Net Security

Latest Articles

The Security Blind Spot: Business Logic Failures and How to Catch Them

Security leaders know the drill: vulnerability scanners run their course, reports stack up, and yet attackers still slip through. What’s going wrong? We sat down with Yosef Yekutiel, CISO & Data Privacy Officer at MaccabiDent, at GlobalDots’ recent “Red Team Reality Check” event to unpack this gap, and how modern offensive security can fill it. […]

Ganesh The Awesome
27th August, 2025
How NetRefer Cut Observability Costs by €96,000 Per Year in Just 3 Months with GlobalDots

Overview NetRefer, a leading iGaming affiliate marketing platform, utilized Azure cloud-native monitoring tools. Shortcomings needed to be resolved, and the business required next-generation observability.  Problems that needed to be solved: Through GlobalDots’ expertise in selecting and implementing the right observability solution, NetRefer achieved €96,000 in annual savings and gained real-time observability across their entire platform […]

Ganesh The Awesome
24th July, 2025
Vulnerability Assessments vs. Penetration Testing: Key Differences, Use Cases & Best Practices

They’re not interchangeable. A vulnerability assessment identifies known flaws at scale. A penetration test mimics an actual attacker probing for impact. Yet many teams treat them the same. They substitute one for the other, check a compliance box, and move on as if they’re covered. They’re not. And that gap shows up later in real-world […]

Ganesh The Awesome
7th July, 2025
Web Application Firewalls (WAFs): The Evolving First Line of Defense in Cloud Security

Modern applications are built for speed, not simplicity. Containers, microservices, and cloud-native deployments have blown up the security perimeter. Traditional tools can’t keep up with this complexity. That’s why Web Application Firewalls (WAFs) matter. But the WAF of 2025 isn’t just an appliance sitting in front of a static website. It’s a flexible, cloud-aware security […]

Ganesh The Awesome
7th July, 2025

Unlock Your Cloud Potential

Schedule a call with our experts. Discover new technology and get recommendations to improve your performance.

    GlobalDots' industry expertise proactively addressed structural inefficiencies that would have otherwise hindered our success. Their laser focus is why I would recommend them as a partner to other companies

    Marco Kaiser
    Marco Kaiser

    CTO

    Legal Services

    GlobalDots has helped us to scale up our innovative capabilities, and in significantly improving our service provided to our clients

    Antonio Ostuni
    Antonio Ostuni

    CIO

    IT Services

    It's common for 3rd parties to work with a limited number of vendors - GlobalDots and its multi-vendor approach is different. Thanks to GlobalDots vendors umbrella, the hybrid-cloud migration was exceedingly smooth

    Motti Shpirer
    Motti Shpirer

    VP of Infrastructure & Technology

    Advertising Services