We now live in an age where attacks on critical infrastructure can cause real world harm. An increasing global concern regarding cyber-terrorism reflects the problem critical infrastructure security poses for many large IT consulting companies, telecommunications providers, utilities and industrial companies. Speaking as a representative of Dimension Data and Datacraft, Morgan Marquis-Boire will provide an introduction to critical infrastructure environments and SCADA networks, and the major differences that exist between understood security best practice and the protective measures regularly found (or not found) in these networks. The most common security mistakes and real world examples will be covered, which will expose some of the potentially catastrophic consequences of a failure in a production SCADA environment. There will be an examination of the critical infrastructure hysteria which is currently in vogue and some consideration of steps which can be taken to secure these networks and prevent cyber-terrorism.