Security Blog
Stay ahead of the threat.
Attack analysis, mitigation guides, and threat intelligence from our security team.
How a 1.4Tbps Memcached Amplification Attack Works — and How to Stop It
Memcached-based reflection attacks can amplify traffic by a factor of 51,000x. We break down exactly how attackers exploit these servers and the mitigation techniques Akarguard applies in real time.
Ceren Yildiz
Security Researcher
DDoS Protection Checklist: 12 Steps Every Engineering Team Should Take
From rate limiting and WAF rules to DNS-based scrubbing and incident runbooks — a practical checklist you can implement this week to harden your infrastructure.
David Patel
2025 DDoS Threat Landscape: Volumetric Attacks Up 340% Year-Over-Year
Our annual threat report analyzes 2.4 million attacks across 80+ countries. Application-layer attacks now account for 61% of all incidents — up from 38% in 2023.
Lena Hoffman
How Reverse Proxy DDoS Protection Works — and Why a DNS Change Is All You Need
You don't need to touch your servers, change your IP addresses, or configure BGP sessions. Here's how a single DNS update puts Akarguard's full scrubbing pipeline between attackers and your infrastructure.
Tarık Arslan
Layer 7 DDoS: Why Application-Layer Attacks Are Harder to Stop
L7 attacks don't flood your bandwidth — they exhaust your application logic. Detecting them requires understanding what legitimate traffic looks like.
Ceren Yildiz
EU GDPR & DDoS Protection: What Your Legal Team Needs to Know
DDoS mitigation involves logging IP addresses — which are personal data under GDPR. Here's how Akarguard keeps you compliant without compromising your security.
Lena Hoffman
SYN Flood Attacks: How TCP Handshake Exploitation Overwhelms Your Servers
A SYN flood exhausts your server's connection state table in seconds — no bandwidth required. We break down the mechanics and the mitigations that actually work.
Ceren Yildiz
UDP Flood DDoS: Why Stateless Protocols Make Easy Attack Vectors
UDP requires no handshake, no state, no authentication. That makes it the preferred tool for volumetric attackers aiming to saturate bandwidth.
Tarık Arslan
DNS Amplification Attacks: How Attackers Turn Resolvers Into Weapons
Open DNS resolvers can amplify traffic 70x. Millions are still reachable on the public internet — making DNS one of the most exploited DDoS vectors today.
Lena Hoffman
NTP Amplification DDoS: When Time Servers Become Attack Infrastructure
NTP's MONLIST command was designed for diagnostics. It became one of the most powerful DDoS amplifiers ever discovered — capable of 556x amplification.
Ceren Yildiz
HTTP/2 Rapid Reset: The Zero-Day That Broke Every DDoS Record
CVE-2023-44487 allowed attackers to generate request rates of 398 million requests per second using a fraction of the connections a normal HTTP/2 client would use.
David Patel
Inside the Mirai Botnet: How IoT Devices Became DDoS Weapons
Mirai turned 600,000 unsecured IoT devices into a DDoS army. The source code was released publicly — and attackers have been building on it ever since.
Lena Hoffman
DDoS vs DoS: Understanding the Difference and Why It Matters for Defense
A DoS attack comes from one machine. A DDoS comes from thousands. The distinction completely changes your mitigation strategy.
David Patel
DDoS Protection for Online Gaming: Why Game Servers Are Prime Targets
Gaming servers are attacked more than any other sector. Competitive motives, personal grudges, and DDoS-for-hire services make every server a target.
Tarık Arslan
DDoS Protection for E-Commerce: How One Attack Can Cost Millions
E-commerce sites face DDoS attacks most frequently during peak sales periods — when the cost of downtime is highest. Here's how to stay up when attackers strike.
Lena Hoffman
DDoS Attacks on Financial Services: Regulatory Requirements and Defense
Banks and fintechs face DDoS attacks from state actors, cybercrime groups, and activists. Regulators in the EU and US now mandate specific resilience requirements.
Lena Hoffman
Protecting Your Origin IP: The Most Overlooked Step in DDoS Defense
A DDoS scrubbing proxy is useless if attackers know your real server IP. Here are every place your IP can leak — and how to seal them.
Tarık Arslan
Rate Limiting Strategies: How to Slow Attackers Without Blocking Real Users
Rate limiting is one of the most powerful and most misused DDoS mitigation tools. Applied correctly, it blocks floods. Applied incorrectly, it blocks your customers.
David Patel
CAPTCHA vs JavaScript Challenge: Choosing the Right Bot Detection Method
Both approaches filter bots from real users — but they work differently, fail differently, and impose different friction. Here's how to choose.
Ceren Yildiz
TLS Fingerprinting (JA3/JA4): How We Identify Bots Without Blocking Users
Every TLS client has a unique fingerprint based on how it negotiates a connection. Bots almost never look like browsers — and TLS fingerprinting catches them without a single challenge.
Tarık Arslan
WAF vs DDoS Protection: Why You Need Both and How They Work Together
A WAF filters malicious requests. A DDoS mitigation system absorbs massive traffic volumes. They solve adjacent problems — and work best as layers.
David Patel
CDN vs DDoS Protection: Similar Names, Very Different Functions
CDNs cache content and reduce origin load. They provide incidental DDoS resilience — but they're not built to absorb targeted attacks. Here's the difference.
Tarık Arslan
DDoS Incident Response Runbook: What to Do in the First 60 Minutes
The first hour of a DDoS attack is the most chaotic — and the most consequential. A documented runbook means your team acts, not panics.
David Patel
Cloud DDoS Protection vs On-Premise Scrubbing: A Practical Comparison
On-premise scrubbing hardware gives you control. Cloud-based protection gives you scale. For most organizations, the math is clear — but the tradeoffs are worth understanding.
Tarık Arslan
IoT Botnets and DDoS: Why Your Smart Devices Are Attacking the Internet
Billions of IoT devices run embedded Linux with default credentials, no auto-update, and permanent internet exposure. They're the raw material of modern DDoS botnets.
Ceren Yildiz
Ransom DDoS (RDoS): When Extortionists Use Traffic as a Weapon
DDoS-for-extortion campaigns follow a predictable playbook: a warning email, a demonstration attack, a Bitcoin demand. Here's how to respond — and why paying never works.
Lena Hoffman
Protecting DNS Infrastructure: The Attack Vector That Takes Down Everything
If your DNS goes down, your entire infrastructure is unreachable — regardless of how well-protected your servers are. DNS is the forgotten attack surface.
David Patel
Slowloris: How a Single Laptop Can Take Down an Apache Server
Slowloris opens thousands of connections to a server and keeps them open by sending partial HTTP headers indefinitely — tying up all available connection slots.
Ceren Yildiz
Volumetric vs Protocol vs Application DDoS: A Field Guide to Attack Types
DDoS attacks fall into three categories that exhaust three different resources. Understanding which type you're facing determines how you should respond.
Lena Hoffman
Black Friday DDoS: Why Retailers Are Under Attack During Peak Traffic
Black Friday isn't just your biggest sales day — it's the day attackers know the cost of downtime is highest. Preparation before the day is the only effective defense.
David Patel
The Real Cost of a DDoS Attack: Beyond Downtime to Revenue and Reputation
A DDoS attack costs more than its downtime window. Engineering time, customer churn, SEO damage, regulatory risk, and brand repair all compound the initial impact.
Lena Hoffman
Multi-Vector DDoS Attacks: Why Single-Mitigation Tools Are No Longer Enough
Modern attacks combine volumetric floods, protocol exploits, and application-layer targeting simultaneously. Each vector requires a different mitigation technique.
Ceren Yildiz
DDoS Attacks on Healthcare: When Downtime Becomes a Patient Safety Issue
Hospitals face a unique DDoS threat: an attack that takes down patient portals or clinical systems is not just a technical incident — it's a potential life-safety event.
Lena Hoffman
DDoS-for-Hire Services: How Booter Services Work and Why They're Growing
For $10, anyone can rent 300Gbps of DDoS capacity for an hour. The market for DDoS-for-hire has grown into a mature industry — and law enforcement can barely keep up.
Ceren Yildiz
Reflection and Amplification Attacks: The Complete Technical Guide
Reflection attacks use third-party servers as unwitting amplifiers. Understanding the mechanics — and the mitigation — across all major protocols.
Tarık Arslan
Zero Trust Networking and DDoS: How Modern Architecture Reduces Attack Surface
Zero trust eliminates implicit trust in network location. Applied consistently, it dramatically reduces the attack surface available to DDoS attackers.
David Patel
DDoS Attack Attribution: Why It's Hard — and When It Matters
Attributing a DDoS attack to a specific threat actor is technically difficult and often impossible. But for law enforcement and insurance purposes, it still matters.
Lena Hoffman
Uptime SLAs and DDoS: What 99.99% Actually Means — and How to Achieve It
A 99.99% uptime SLA allows 52 minutes of downtime per year. DDoS attacks routinely cause hours of outage. Here's how to make your SLA real.
David Patel
API Security and DDoS: Protecting REST and GraphQL Endpoints from Abuse
APIs are high-value DDoS targets — they're computationally expensive, often publicly documented, and frequently under-protected. Here's how to harden them.
Tarık Arslan
Writing a DDoS Incident Postmortem: A Template for Engineering Teams
A postmortem isn't about blame — it's about systematic improvement. Here's a structured template for extracting maximum learning from a DDoS incident.
David Patel