Because networks frequently change, it is an evolutionary process. For this reason, repeat tests should be conducted. But these services don't come cheap. Because of prohibitive costs, many executives decide against future penetration tests. Shipley says this is a shortsighted mistake.
Clients are fickle.
They think, after the first test, their systems are secure. Deborah Radcliff is a free-lance writer in Sebastopol, Calif., who specializes in security issues. Think like a criminal The network was locked down nice and tight. Hacker and security consultant Peter Shipley, in Berkeley, Calif., was appalled when he discovered this on a recent facility inspection. In another investigation at an oil producer, he found the supervisor's office tightly locked.