Apple today pushed out iOS 7.0.2 as a tiny (17-19 MB) update to all users of iPhones and iPads running iOS 7.0 or 7.0.1. The new version arrives as build 11A501 for all devices. According to the change log:
- Fixes bugs that could allow someone to bypass the Lock screen passcode
- Reintroduces a Greek keyboard option for passcode entry
The security fixes for iOS 7.0.2 can be found here.
It's highly recommended that everyone running iOS 7.x install the 7.0.2 update. You can force your device to check for the update by touching Settings > General > Software Update. as a reminder, you need to have at least 50 percent remaining on your battery or be plugged into AC power to install the update.
Update: After installing iOS 7.0.2 on my iPhone 5s I wasn't able to bypass the lock screen via either of the methods described at the links above.