Cybersecurity challenges - CTFs and more

Capture-The-Flag style cybersecurity challenges are a fun way to learn new skills and to keep sharp on things you already know. There is a very large number of challenges available in a wide variety of fields and difficulties. The fields span scripting vulnerabilities related to weak environment or configuration, network vulnerabilities, application security, steganography, cryptography and many more. Usually you will compete against teams under time pressure, but I like to take past challenges and try to do an easy one over lunch or take on a hard one over the weekend. Additionally some sites, such as ctftime, post challenges that are not part of a CTF game.

When I find something noteworthy, I try to add a section with my take on it here on my page.