Ask 10 people what cloud computing is, and you will get 10 different answers. But ask those same people about security in the cloud, and they will all agree on one thing: it is critical. What is cloud computing? To some, cloud computing once involved people sitting at terminals hooked to a mainframe in the basement. Even today, some observers claim that cloud computing is just a buzzword for some form of utility computing. But in its broadest definition, cloud computing generally means software and systems that distribute programmatic elements to multiple computers - typically off premise. Users are charged for computer power and storage as needed. "Essentially the cloud is the promise that the internet has been holding for many years, where you can draw services dynamically out of another environment," says Peter Evans, director, security strategy and technology integration at IBM. "From an enterprise point of view, it changes the way you think about the business."
展开▼
