Secure SecurityBlog

DNS Spoofing: How Hackers Hijack Your Internet Requests

by ChatGPT

---

DNS spoofing, also known as DNS cache poisoning, is a cyber attack where attackers corrupt the Domain Name System to redirect traffic to malicious websites. This attack compromises the way devices find and connect to web services.

How DNS Works

The Domain Name System translates human-friendly domain names like example.com into IP addresses that computers use. If attackers tamper with this process, they can trick users into visiting fake sites without them knowing.

How DNS Spoofing Happens

• Attacker sends forged DNS responses to a DNS resolver
• Malicious IP addresses are cached by the server
• Users are redirected to phishing or malware sites

Risks and Consequences

1. Credential theft through fake login pages
2. Malware infections from malicious downloads
3. Data interception on spoofed sites

How to Protect Against DNS Spoofing

• Use secure DNS services (e.g., DNSSEC-enabled resolvers)
• Keep network software and routers updated
• Monitor for unusual DNS behavior
• Use HTTPS to verify website authenticity

DNS spoofing is stealthy but preventable. With the right tools and practices, individuals and organizations can protect themselves from this kind of network-level deception.