Have you ever wondered what your application is made of? From which libraries? Have you ever seen their source code? Every time I looked at the dependency graph, I realized that we actually have zero control over it. Millions of lines of library code. What is in all these libraries? Is there anything “interesting” inside? Indeed, sometimes you can find some stuff inside. In order to fuel your inner paranoia, we recommend reading A story about how I’m harvesting credit card numbers and passwords from your site.