DNS spoofing – The Internet danger for every business

DNS spoofing sure sounds spooky. It is one of the Internet dangers that lurks in the darkness and threatens every business. Is there a way to stay safe? Let us show you.

What is DNS spoofing?

DNS spoofing is a DNS cyber attack that aims to redirect the DNS clients’ traffic to a fake site, with which the bad actors attempt to steal clients’ personal data (bank accounts, emails, personal information, and more.). The fake site looks just like the real sites they copied. This is why many people get confused and provide their data.

Imagine if you type “amazon.com” and your browser loads a page that looks just like the real one but is a fake copy. Then, you order something, provide your bank card information, and at that moment, the bad actors have your data.

DNS spoofing can be performed in a few different ways.

Poisoned cache of a DNS resolver server. The bad actors hack a resolver server and, with the access they have, they modify the DNS records. Then, they redirect the traffic to a fake site.

Man-in-the-middle. The bad actors can put another resolver between your device and your local DNS resolver. The resolver will perform the domain resolution, sending you directly to the fake site.

Hacked DNS authoritative server. Cybercriminals can also directly hack and edit the records inside your authoritative server. It could be harder, but possible.

Why is DNS spoofing a danger for every business?

The bad actors can steal the traffic from your site and redirect it to their fake site. You can lose potential clients because of it.

Cybercriminals can steal your clients’ data. Unfortunately, the problem is also yours because the clients probably won’t know they are on a fake site controlled by criminals, and they will blame you for any data stolen.

The traffic inside your office can be redirected too. That way, your employees can share sensitive information about your business with the bad actors. That can lead to many problems.

DNS spoofing can damage your reputation overall. After that, it could be very hard to clean it.

Can you protect your business from DNS spoofing?

DMARC can secure your communication. It uses both SPF and DKIM to verify the sender’s domain and encrypt the email communication. It also provides valuable feedback to see if somebody is trying to send emails on your domain’s behalf.

DNSSEC can provide a way to authenticate the domain name. It is a group of security extensions that secures the communication between clients and DNS servers with encryption.

VPN can help keeping you away from man-in-the-middle attacks. It creates a safe tunnel between your device and the VPN provider’s server, making it a good option for public Wi-Fi networks and office work.


Now you know. DNS spoofing is a real danger, but your business has protection methods. Use DNSSEC, DMARC, and VPN, and keep your business and your clients safe.

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