A while ago it was revealed that Facebook has the "....ability to read any text message sent over mobiles and tablets which have downloaded its mobile app. Facebook apparently uses this data as research in the process of developing its own SMS-like messaging service. So far, it has only tapped into the texting inboxes of a handful of users, but it has the power to grab any and all texts if it wants to." While it's difficult to think that Facebook would ever use this data for anything else than what's stated above, even the slightest speculation isn't good news for those businesses who value security.
A company that certainly does so is IBM. In a similar worry as to the Facebook woes above, IBM recently decided to ban Apple's Siri from their networks. IBM CIO Jeanette Horan told MIT's Technology Review that "The company worries that the spoken queries might be stored somewhere."