Data theft can occur in the old-fashioned way, through the theft of your computer, or tablet, or phone. Not only are you inconvenienced and have to pay for a new one, all your data are now in the hands of someone else. And one of the reasons these devices are stolen in the first place is for the data they contain.
You can probably think of some common-sense measures to protect your equipment. But, despite that, thousands of laptops are stolen every day. Millions of phones are stolen each year. More phones may be lost than stolen. All those lost phone owners probably would have said they were careful with their phones.
I expect people are more careful with their laptops than with their phones. Yet the thefts occur. Sometimes the owner wasn’t being as careful as they could have. Sometimes, the thief steals it right out of their hands.
Learn how to protect your electronic equipment. Don’t forget those flash drives (a.k.a. USB drives, thumb drives, memory sticks). And keep an especially close watch on your laptop when you are away from home with it.