Glossary

ARP Spoofing

On your local network, computers find each other using ARP. ARP spoofing tricks computers into sending their traffic through the attacker's machine first. It's like redirecting all office mail through a spy's desk before it reaches the recipient.

What is ARP Spoofing?

A technique where an attacker sends fake ARP messages over a local network to link their MAC address with a legitimate IP address, enabling interception of network traffic.

Why Should You Care?

Understanding arp spoofing is essential for building a strong security posture. This knowledge helps organizations identify threats early and respond appropriately.

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Real-World Example

Security teams regularly encounter arp spoofing in their day-to-day operations. Recognizing and responding to these scenarios is a core security competency.

How to Protect Against ARP Spoofing

  1. 1.

    Use static ARP entries for critical servers

  2. 2.

    Implement network encryption (802.1X)

  3. 3.

    Deploy ARP spoofing detection tools

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