DNS was designed many years ago, when network security was not a priority. For this reason, it is vulnerable to various types of attacks. The most well-known is the “DNS spoofing” attack, also known as “DNS cache poisoning.” In such an attack, malicious entities can redirect users to fake websites, which can lead to the theft of personal data or other serious harm. The solution to this problem is DNSSEC.
DNSSEC (Domain Name System Security Extensions) is a set of security measures that protects the DNS (Domain Name System). Its primary purpose is to ensure that DNS responses come from the correct source and have not been altered.
It works by adding digital signatures to DNS records, which can be verified by the user. With DNSSEC, users can be confident that the website they are connecting to is indeed the one it claims to be, helping to protect against attacks such as spoofing, cache poisoning, or phishing.
Detailed technical information regarding the operation of DNSSEC is available here.
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