In a less fraudulent sense, your internet service provider can also manipulate your DNS requests to show ads to you. Why are DNSs hijacked?Īs DNS is one of the most important aspects of the internet, it’s subsequently a target of various forms of attack for a range of reasons, like the below: Display ads to generate revenueĪttackers can hijack your DNS to display unwanted ads to generate revenue, in a technique known as pharming. This is similar to altering a phone book, removing certain names or companies or swapping a listing’s address to that of another company.ĭNS hijacking makes it possible for a sophisticated attacker to impersonate websites, gathering personal information such as passwords and IP addresses. This means replacing the IP address of the site you want to visit with that of another site, or simply removing the IP address altogether. It is also possible for a DNS server itself to poison its records. This enables attackers to imitate the DNS server and deliver incorrect responses. When a computer reaches out to a DNS server to find a website, it doesn’t check whether it’s connecting to the correct server. Want to know more about what a DNS does? Watch the video below: When you’re connected to ExpressVPN, you’ll use its secure DNS servers, keeping your internet traffic protected.
However, VPN providers also run their own DNS servers to protect your internet traffic. It’s similar to your home address you use it to tell others where you live, but not the GPS coordinates.īy default, you use the DNS servers provided by your internet service provider (ISP). For example, when you type a URL, like, into the address bar of your browser, your DNS servers will translate that into an IP address that represents.
The Domain Name System (DNS) turns domain names into IP addresses so that your browser can read them and load the correct pages. Real-world examples of DNS hijacking What is DNS?
It’s also called DNS Poisoning or DNS spoofing. Domain Name System hijacking (DNS hijacking) is a tactic used to redirect you to websites different from the ones you’re intending to visit, usually to steal your personal data, display unwanted ads, or impose internet censorship.
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