He felt a chill. He had just watched someone else’s machine ask the internet a question. Legally, in his own home, on his own network, this was fine. But the implication was vast.
The instructor, a voice only known as “Cipher,” spoke in calm, deliberate tones. “A sniffer is not a weapon. It is a mirror. Before you can protect a network, you must learn to listen to its heartbeat. Today, you will capture your first packet. Not from a lab. From the air around you.” Leo hesitated. Then he booted the VM, plugged in a USB Wi-Fi adapter, and enabled monitor mode. download ethical hacking: sniffers course
Instead, he installed an HTTPS Everywhere extension, set up a Pi-hole for network-wide DNS filtering, and explained to his roommate what ARP spoofing was. He felt a chill
sudo tcpdump -i wlan0mon -c 10
The description promised to unlock it: “Learn to see what the network sees. Capture traffic. Analyze protocols. Defend against man-in-the-middle attacks. Become the guardian of the wire.” But the implication was vast
“So you could spy on me right now if you wanted?” the roommate asked, half-joking.
