A common challenge in any security awareness program is communicating to the OCU (Ordinary Computer User). Often terms you and I in the security community are familiar with may seem overwhelming or confusing to others, especially when these definitions change over time. To help you and the community we have put together a "Top Security Terms in Simple English". Developed by an editorial board of SANS instructors, this resource is free to anyone to use. You can use these definitions in your own awareness program, or perhaps share it with family or friends who get confused on what is what. If you would like to see a term added, or feel a definition can be improved, please contact me. Remember, we want to keep this document easy to use. As such we are focusing on only the most commonly used terms, and we are explaining them in a simple to understand format.