It's easy to use Dropbox on your iPhone to upload, download, or share files via the Dropbox app. Here's how to do it.

Dropbox is a cloud-based storage service featuring several plans that let you save files and sync them for easy sharing.

The “cloud” is great, until something goes drastically wrong. Sometime on Sunday, online file-hosting service Dropbox pushed out a system update, inadvertently letting anyone log into any Dropbox ...