“The No. 1 thing high-net-worth people need to be aware of is they’re always targets,” said Mark G. McCreary, chief privacy officer at the Fox Rothschild law firm. “Anyone who is a celebrity is constantly posting where they are and where they’ll be.”

Social media not only presents an opportunity for criminals, he said, it provides them with more personal details about you, which allows them to create the mosaic they can use to impersonate you.

Protecting yourself starts with knowing how you are open to attack. Here are some common vulnerabilities and solutions for each.

Have a worry-free vacation

In this share-all age, the idea of not posting photos of your every moment on social media is anathema. After all, how could someone who posts a photo of grilled lamb chops at home refrain from posting an image of Moroccan lamb served al fresco in Casablanca?

But those instant posts do more than alert bad guys that you’re not grilling in your backyard. They tell criminals about your likes and dislikes and help them create a fuller portrait of who you are and what might be lurking in your email should they hack it.

Vacations, in general, are fraught with risk. The hotel Wi-Fi network should never be used, because it exposes your devices to hacking. Use the hot spot on your phone instead, and never log into your financial accounts on a public network.

Some Wi-Fi hotel networks are outright fakes. David W. Fox Jr., president of the global family and private investment offices group at Northern Trust, said he cautioned clients about logging into hotel networks that look legitimate but have a twist on the hotel’s name. “You click on it and get in, and you just downloaded all the information on your phone,” he said.