Resources
People often ask me "How did you learn how to hack?" The answer: by reading. This page is a collection of the blog posts and other articles that I have accumulated over the years of my journey. Enjoy!
Character sets are an interesting thing! The history from ASCII to Unicode has a very odd history.
Krebs is talking about domains have similar looking characters.
Someone could buy "amazon.com" but with the letter being a different character than the normal ASCII a. Instead, using a similar looking unicode character.