By default, Control Center can be accessed from anywhere, including the Lock screen. While it doesn't share or access personal information, it does potentially let pranksters or even thieves disable services on your iPhone, iPod touch, or iPad, and even put it into Airplane mode so you can't track it later. Having Control Center available is hugely convenient, but if security is more important to you, you can easily turn Lock screen access off.
Here's how to stop Control Center from coming up on the iOS 7 Lock screen:
That's all there is to it. Control Center will not longer be accessible from the Lock Screen of your iPhone or iPad.
If you have additional questions, or need some more help with Control Center or iOS 7, check out the following resources!