Internet Security--A Plan of Attack

Could this happen to you?
"The threat is very real," Danahy says, and he has a list of things a CEO should know—or find out—about his e-commerce system.

The first question, he says, is: "Where are we hosting? If it is internal, do we have a firewall? Even if the Website is hosted externally, what about internal servers? Are they protected by a firewall?