Hacks were up 40% last year, with victims ranging from Wendy's to the DNC.

Technology behind bitcoin and other virtual currencies unfairly seen as insecure and susceptible to criminal activity, supporters say.

Technology behind bitcoin and other virtual currencies unfairly seen as insecure and susceptible to criminal activity, supporters say.

Last year, the virtual currency was a worse investment than oil or the ruble, but some investors are keeping the faith.

Last year, the virtual currency was a worse investment than oil or the ruble, but some investors are keeping the faith.

Virtual currency recovers just a month after "Silk Road" shutdown, on growing acceptance around the world and a wave of popularity in China.

Virtual currency recovers just a month after "Silk Road" shutdown, on growing acceptance around the world and a wave of popularity in China.

In wake of court ruling, smaller companies worry costs may rise.