Looking at data usage for past 12 hours and I see activity despite the fact I was asleep?
Were apps updating in the background?
Apps will sync in the background, updates are checked for and downloaded, etc. Most mail apps sync at least every 15 minutes and some check as much as practically constant. If an MMS comes in during the middle of the night. Would you want to wait to tell that to download or just have it download automatically? There are ways to restrict data usage on devices. It is a matter of how much do you want to cripple your device overnight.
Already have an account? Login
Enter your username or e-mail address. We'll send you an e-mail with instructions to reset your password.
Sorry, we're still checking this file's contents to make sure it's safe to download. Please try again in a few minutes.
Sorry, our virus scanner detected that this file isn't safe to download.