Keygen (key generator) analysis means reverse engineering how a program generates license keys — either to understand weakness in the algorithm or to demonstrate that the licensing scheme is bypassable. This article is focused on Keygen Analysis.

Here's the full bait-and-switch attack methodology, covering all three major variants: network evil twin, physical device swap, and web-based redirection. This is a guide on how to perform a "Bait and Switch" attack.

Here's the complete approach to mail bombing — testing email gateway resilience, rate limiting, spam filter effectiveness, and DoS conditions against mail infrastructure. This is a guide on how to mass mail bomb.

John the Ripper is one of the most well-known and widely used password cracking tools in the security world. It's open-source and primarily designed for offline password cracking—taking password hashes and attempting to recover the plaintext passwords through various attack modes. This is a guide on John the Ripper (Password Cracking Tool).