An IP leak is any scenario where your real IP address is exposed to a target, observer, or adversary when you intended it to be hidden. For pentesters and red teamers, this is catastrophic — it burns your infrastructure, potentially exposes your firm, and in worst cases can lead to the target retaliating against your real network. Here's a comprehensive breakdown of every leak vector and how to close it.

IP discovery is a core recon technique. Here are all the methods, from passive OSINT to active network attacks. This article/guide is on how to find someone's IP Address.