Why DNS matters
The Domain Name System (DNS) is simply the foundation of The Internet
What Is DNS?
The Domain Name System (DNS) is the foundation of how we navigate the internet. DNS is like the Internet’s address book.
Every time you visit a website, send an email, or use an online application, DNS translates human-readable domain names into IP addresses that machines use to communicate.
Instead of remembering complex IP addresses like 192.0.2.1
, users type a domain name like example.com
. DNS servers resolve that name to the corresponding IP address so your browser can load the correct site.
In this analogy:
Domain names = Street or business names
IP addresses = GPS coordinates
DNS servers = The mapping system that translates names into exact locations
Without DNS, navigating the Internet would be like using a GPS that only understands latitude and longitude—accurate, but unusable for most people.
However, while DNS enables access to online services, it has also become one of the most exploited attack vectors in modern cybercrime.
Why Securing DNS Is Critical
For everyday users, DNS is invisible—yet it underpins nearly everything they do online. Unfortunately, its invisibility makes it a perfect vector for cybercriminals.
Attacks on DNS can lead to:
Phishing and domain spoofing – tricking users into visiting fake versions of trusted websites.
Malware communication (C2) – infected devices use DNS to contact command-and-control servers (used by hackers).
DNS tunneling – attackers can hide data exfiltration or control commands inside DNS queries.
Distributed Denial of Service (DDoS) via DNS amplification – DNS can be used to overwhelm a service and make it unavailable.
Man-in-the-middle (MITM) attacks – unsecured DNS allows attackers to intercept and alter queries.
Cache poisoning – corrupting DNS resolvers to redirect users to malicious destinations.
Typo-squatting – abusing misspellings of legitimate domains to deceive users.
Hence, if DNS is not protected, a cybercriminal could redirect you to a fake version of your bank’s site, steal your login details, or flood a service with fake traffic until it crashes.
For IT professionals: DNS is not just a name resolution service—it’s an attack surface.
Most traditional network defenses overlook DNS traffic. Attackers know this and exploit it to establish persistence, exfiltrate data, or escalate access. Traditional firewalls and antivirus systems often don’t inspect DNS traffic, making it a blind spot. Securing DNS involves filtering, encrypting, monitoring, and logging queries in real time—at scale, and often beyond the corporate perimeter (remote work, BYOD, IoT).
How Hafnova Protects DNS
Hafnova takes a layered approach to DNS protection that benefits both everyday users and security teams.
For users:
You don’t need to install anything or configure complex software. With Hafnova’s DoHzel on your device or network, DNS is encrypted, filtered, and anonymized in the background. You’re protected whether you’re on your company’s Wi-Fi or a public hotspot.
For tech teams:
Hafnova’s platform includes:
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DoHzel:
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Fully supports DNS over HTTPS (DoH) and DNS over TLS (DoT)
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Compatible with Mobile Device Management (MDM) solutions, APN (virtual mobile networks), firewalls, proxies
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Provides DNS policy enforcement and contextual filtering
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Delivers log-level visibility for Security Operation Centers (SOC), Security Incident and Event Management (SIEM) solutions with SOAR integration
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CyberIntel:
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Real-time feed of malicious domains: phishing, typosquatting, botnets, systems spreading malware
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Continuous monitoring of the entire digital ecosystem, including supply chain domains
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AI-assisted detection of spoofed or rogue domains and subdomains
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ThreatDB:
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Over 50+ million indicators of compromise (IoCs) processed in real-time
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Aggregated from honeypots, browser sandboxes, crawlers, European CERTs, MISP alliances and other trusted partners
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Enriches forensic analysis and automates alert correlation
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Together, these tools ensure DNS traffic is private, verified, and aligned with organizational policy, while enabling real-time detection and mitigation of threats—even before they hit the endpoint.
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