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  • DNS: The Silent Layer You’re Not Securing

DNS: The Silent Layer You’re Not Securing

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DNS Hijacking Can Redirect Entire Organizations

If attackers compromise your DNS provider or registrar, they can reroute email, web traffic, and APIs. DNS is a single point of failure with massive reach.

Misconfigured Records Expose Sensitive Services

Dev environments, backup systems, and admin panels often have DNS entries that should never be public. Passive DNS tools let attackers map your shadow infrastructure.

DNS Tunneling Enables Data Exfiltration

Malware can use DNS queries to smuggle data out of your network. It’s stealthy, works in restricted environments, and evades most traditional detection systems.

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Resolver Logging Reveals User Behavior

Internal DNS traffic shows what users access and when. Without visibility, you miss indicators of compromise — like beaconing, typo domains, or C2 calls.

Domain Expiration Can Be a Backdoor

Lapsed domains once owned by your company — used for old mail servers or apps — can be bought and abused. Attackers revive them to harvest data or phish users.

Secure DNS Requires Monitoring and Policy

Use trusted resolvers, enable DNSSEC, monitor changes, and audit records regularly. DNS isn’t just IT plumbing — it’s a prime security control point.

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