This morning's Wall Street Journal reports on its reporter, Pui-Wing Tam's, report on how Hewlett-Packard Company (NYSE: HPQ) spied on her.

There are many levels of irony in this story. Reporters do all sorts of investigations on their subjects. I don't know how they cultivate their anonymous sources to dig up the details that they report. But my hunch is that while they're often snoops -- peering into places where their targets would prefer they did not -- reporters don't resort to the kind of tactics (pre-trash inspections or monitoring phone calls and IM sessions) to which Tam was subjected.

But I can't help but think that Tam's subjects share some of the same fears of being investigated that she must have felt when she began to realize that HP was placing her under surveillance. Her article's cool, almost tongue-in-cheek tone does not reveal these fears explicitly, instead leaving them to the reader's imagination.

But I imagine that former HP Chair Patricia Dunn must have felt a similar fear when she realized that someone on HP's board was leaking to the media. I'm not defending what HP did; I think it's a 1984-like invasion of privacy for which HP will suffer significant consequences.

With deference to Prussian General Von Clausewitz -- who famously said war is "a continuation of politics by other means" -- I see HP's tactics as investigative reporting by other means.

Peter Cohan is President of Peter S. Cohan & Associates, a management consulting and venture capital firm, and a Professor of Management at Babson College. He has no financial interest in HP.