Ubuntu is a free computer system, like Windows or macOS, but it’s built by a community. It’s great for programmers because it’s very flexible and has lots of tools already built-in that help you code.

Securities fraud is a form of white-collar crime that disguises a fraudulent scheme in order to gain finances from investors.

At Def Con, you can see live how vishing works. Surprisingly often, attackers obtain even the most important company information by telephone.

BBC BItesize interview the director of the Imperial College Centre for Cryptocurrency Research and Engineering to answer the question: what is Bitcoin?