Welcome back to CyberShield! We have explored web vulnerabilities and reconnaissance. Now, it's time to go deeper into the network layer. If you want to see exactly what is traveling through your Wi-Fi or Ethernet cables, you need to master Wireshark . What is Wireshark? Wireshark is the world’s most popular network protocol analyzer. It allows you to capture and interactively browse the traffic running on a computer network. Think of it as a "microscope" for your network—it lets you see every single packet that is sent or received. Why Do Pentesters Use Wireshark? For a Cybersecurity professional, Wireshark is essential for: Analyzing Protocols: Understanding how HTTP, DNS, TCP, and TLS work. Finding Vulnerabilities: Spotting unencrypted sensitive data (like passwords) sent over plain HTTP or FTP. Incident Response: Investigating how a malware or virus is communicating with its Command and Control (C2) server. Network Troubleshooting: Fixing latency or connection ...