iPhone Land Mine
The new iPhone operating system has a built-in disaster as the default setting.
If your Wi-Fi signal gets weak, the iPhone automatically shifts to the phone carrier service. You can eat up your data limit fast.
One man got a monthly bill for $2,000. Normally, it was $250. The story is here:
This is the default setting for iOS 9.1. It's called Wi-Fi Assist. To turn it off, go to settings, then cellular, then down at the bottom users can switch off the feature.
This is a land mine. De-fuse it.