Apple has released an update for iOS 7 that fixes security bugs found in the new mobile operating system for iPad, iPhone and iPod touch.

iOS 7.0.2 was released by Apple on Thursday, and is available to download and install now for all devices that can run iOS 7. Apple says that the update: "Fixes bugs that could allow someone to bypass the Lock screen passcode."

Apple has also reintroduced the Greek keyboard option for passcode entry.

iOS 7.0.1 came out last week but was specifically for iPhone 5c and iPhone 5s.

iOS 7 was released on 18 September, and shortly after, it was discovered that there was a way to bypass the lock screen and access Contacts, Photos, Twitter and Voicemail. It was a tricky process, involving speedy input, but it was doable nonetheless.

Apple confirmed that it was working on a fix for the security flaw, and has delivered with iOS 7.0.2.

Apple has said that more than 200 million iOS devices were running iOS 7 within five days of its release.

You can find out more about iOS 7 in our iOS 7 review, and master the software using our 30 iOS 7 tips.

See also:

New Siri features in iOS 7

Will Apple recreate the success of iOS 7 when it launches Mavericks this autumn

How to downgrade from iOS 7 to iOS 6

Baffled by iOS 7? How to do the 5 things you don't know how to do on an iPhone anymore

After a week, iOS 7 runs more than half of Apple's mobile devices