DNS security, explained by the people who build it.
Threat research, buyer guidance and compliance analysis from the Secure Domains team.
18 articles
DNS Firewall vs Traditional Firewall: Key Differences
Both are called firewalls, but they inspect different things at different moments. Here is how a DNS firewall differs from a network firewall, what each one catches that the other misses, and why they work best together.
October 13, 2026 · 5 min read
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How DNS Filtering Protects Businesses from Phishing
Every phishing link, QR code and fake login page needs a DNS lookup before it can steal anything. Here is how DNS filtering uses that moment to stop phishing across email, chat, SMS and the web, and where it fits alongside your other defences.
October 13, 2026 · 4 min read
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What Is Authoritative DNS? A Complete Guide
Authoritative DNS is the source of truth for your domains: it publishes the records that tell the world where your website, email and applications live. This guide covers how it works, the records that matter, how to secure it with DNSSEC and how to keep it available.
October 13, 2026 · 5 min read
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Ransomware's First Packet: Breaking the Kill Chain at the DNS Layer
Long before files are encrypted, a ransomware operation has already spoken DNS a dozen times — payload staging, C2 beacons, and slow, low-and-slow tunnels quietly exfiltrating your data for double extortion. Each of those queries is a chance to stop the attack while it is still cheap to stop.
July 16, 2026 · 3 min read
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Quishing, Deepfake Lures and LLM-Written Phishing: Why 2026's Scams All Still Need DNS
QR codes that dodge email filters, deepfake voices that impersonate your CFO, and phishing emails written by LLMs with flawless grammar — the lure has never been more convincing. But every one of these attacks still ends the same way: a victim's device resolving a malicious domain. That constant is your defensive advantage.
July 16, 2026 · 3 min read
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The 12 Questions Every CISO Should Ask Before Buying Protective DNS
Every protective DNS vendor promises to block bad domains. The differences that matter — data residency, detection depth, encrypted DNS support, multi-tenancy, key custody — only surface when you ask the right questions. Here is the evaluation checklist we would use if we were the buyer.
July 16, 2026 · 4 min read
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Encrypted DNS Is a Double-Edged Sword: DoH, DoT and the Enterprise Visibility Gap
DNS-over-HTTPS and DNS-over-TLS protect users on hostile networks — and quietly bypass every DNS control your enterprise relies on. Browsers and operating systems now encrypt DNS by default, sending queries to external resolvers you don't operate. Here is how the visibility gap forms, why blocking encryption outright is the wrong answer, and how to get privacy and protection at once.
July 16, 2026 · 3 min read
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NCA ECC, SAMA CSF and UAE IA: Mapping DNS Security to GCC Cybersecurity Frameworks (2026 Edition)
GCC regulators have moved from broad principles to specific technical controls — and DNS now sits squarely inside them. This practical guide maps protective DNS, authoritative DNS and DNS logging to the Saudi NCA ECC, SAMA CSF, and UAE IA Standard, so compliance teams know exactly which requirements the DNS layer helps satisfy.
July 16, 2026 · 3 min read
Read the articleAI Agents Are Browsing the Web for You — Who's Watching Their DNS?
Agentic AI is quietly becoming the biggest new source of network traffic in the enterprise. Autonomous agents book meetings, research suppliers and call APIs at machine speed — and every action starts with a DNS query no human ever sees. Here is why protective DNS is emerging as the control point for non-human traffic.
July 16, 2026 · 3 min read
Read the articleStop threats at the first DNS query.
See how DNS Armor Protect™ blocks malware, phishing and tunnelling before a connection is made.