Dell spends $2.7 million per year to protect founder Michael Dell's family, but tweets and blogs from the billionaire's kids describing where they are and what they're doing don't make the job any easier.

An Instagram account linked to the Twitter postings of Dell's daughter, Alexa, 18, divulged where she was shopping and where she stayed on a recent trip to New York. Alongside that, her tweets detailed GPS information that could track her exact location; she even tweeted the location of her high school graduation dinner, which her family attended.

A photo of Zachary Dell, 15, appeared on a Tumblr blog called "Rich Kids of Instagram," showing the scion devouring a grand buffet just before departing for Fiji on the family's jet.

The location-specific social media messages have got to be driving the company's security team crazy, according to experts.

“I’m sure they called the dad and shut it down,” Jason Thorsett, the director of operations at bodyguard firm Custom Protective Services, told Businessweek. "It’s innocent on the kids’ behalf, but social networking has become the bane of our existence. They undo a lot of hard work on Facebook and Twitter.”

Dell officials aren't compounding the revelations with any more information.

“We don’t make any comments regarding Mr. Dell’s, or his family’s, personal activities,” a Dell spokesperson told Businessweek.

The Fiji photo and Alexa's Twitter account have been taken down.

Click for more at Businessweek.