Sinhronization of data from different devices and computers into the "cloud" has many advantages. Data are accessible on all devices (e.g. calendars and directories), we can restore them very simply in case of a device crash. Recomendations on safe and prudent use of mobile devices shouldn't be reaching to field of threats and ban. Intelligent devices enable us convenient and value-added communication, but we should take care for avoiding the pitfalls.