The market researcher says this poses a serious problem for businesses, where bring-your-own-device options are commonplace. Seventy-five percent of mobile apps will fail the most basic of security tests next year, predicts market researcher Gartner. The market researcher said Sunday that in 2015, the majority of mobile applications -- whether in the Android, iOS or Windows Phone ecosystems -- will not have basic business-acceptable security protocols in place. This poses a s