As for making purchases online, consider signing up for a credit card to be used only for such transactions. You also can set up a virtual credit card for a one-time purchase whose cost you can limit. Virtual credit cards are issued by companies such as Bank of America, Citi, Capital One, American Express and Privacy.com. According to Mr. Rubin, if the virtual credit card is compromised, it should have no impact on your physical card. BCD Travel, another travel management company, advises against posting pictures online of your itineraries, tickets or boarding passes.

Source: New York Times February 04, 2019 23:03 UTC