Entries by Chris Castiglione

Bitcoin vs. Ethereum

What’s the difference between Bitcoin and Ethereum? First, it’s important to understand that there are two categories of digital coins: Cryptocurrencies (e.g. Bitcoin, Litecoin, Monero, ZCash, etc) and Tokens (e.g. Ethereum, Filecoin, Storj, Blockstack, etc.) Bitcoin is a “cryptocurrency.” Bitcoin and other cryptocurrencies are competing against existing money (and gold) to replace them with a truly global currency. […]

What is Coding?

print “Hello, World!” We’re going to talk today a little bit about coding. Specifically we’ll answer the question, What is Coding? and also cover a little of what happens when we code. Before you begin, though, I want you to right click on your browser window and choose the View Page Source option. What you just […]

LLC vs. Corporation: Which is Right for Startups?

If You’re Starting A Startup: If you’re starting a startup, and you want to deal with equity, you’ll need to start something known as a C-Corp.* The two major ways you can create a company are as a C-Corporation (C-Corp for short) or a Limited Liability Company (LLC). If you want to have equity in your […]

Understanding HTTP Basics

One thing that always surprises me when teaching a security class to developers is how little they understand about HTTP. Sure, everyone knows that a HTTP 500 error is a problem on the server, and 404 means the file is missing, but few actually understand how HTTP works at a lower level. This is critical […]

The Newbie Guide to Ethical Hacking

I hack websites. I’ve been doing it for a long time, across various industries, tech stacks, and programming languages. When I tell people what I do, especially those in the tech community, they often ask how I started and how can they learn more. So today, I’m going to give you a quick intro into […]