Even though 2017 is already the worst year for mass shootings in modern U.S. history, Americans are m ore worried about cybercrime than violent crime. That's according to a new Gallup poll which found that 67 percent of U.S. adults frequently or occasionally fret about having personal, credit card or financial information stolen by hackers. 66 percent also worry about the threat presented by identity theft.In comparison with cybercrime, anxiety about conventional crime forms is less prevalent with a large gap to the third-biggest worry - having a car stolen or broken into. That's a frequent concern for 38 percent of people while 36 percent tend to worry about burglary when they are away from home.More serious crimes such as muggings, murders and sexual assault are much further down the list, but why? The reason cybercrime comes first is more than likely due to far higher levels of victimization, along with substantial coverage in the media. Gallup also found that a quarter of households have experienced hackers stealing their personal information while a mere three percent have experienced a burglary.