Lost Phone....for weeks
In the early days of BYOD, companies felt they had a silver bullet for lost or stolen smartphones: the full remote wipe. Any critical data on that device would be wiped away. There's just one problem. People misplace their phones all the time, and so they'll take every measure to find it before calling IT to hit the remote wipe.
Their reluctance to report the lost phone could span days, even weeks - meaning for all that time, corporate data could have been compromised.