Today's Tech: the best of Apple's iOS 7, UK government denies Prism connection, and BBC in hot water over £100m failure

The big news from the Worldwide Developer Conference keynote this week was the introduction of iOS 7, which is "the biggest change to iOS since the iPhone," according to Apple CEO Tim Cook. The redesign, which was architected by chief designer Jony Ive, embraces a more "flat" look and feel - say goodbye to bubbled text messages, for example. But it's still colourful, and moves with you, letting you "look" behind apps, according to Apple. But just what are the best features of iOS 7? We've taken a detailed look to find out- click on to join us in the exploration.

The theory went that 2008's Digital Media Initiative would update the BBC's production process and make content more easily accessible for employees. But it seems that the government "may have been misled" when former BBC director general Mark Thompson said: "There are many programmes that are already being made with DMI, and some have gone to air and are going to air with DMI already working". So why was the £100 million project cut last month? New BBC director general Tony Hall's commented: "We believe it is better to close it now rather than waste more money trying to develop it further." How do we begin to make the sense of this confusing situation? Follow the link and find out if the BBC may have misled MPs over its pricey project.

For decades, IT professionals have delivered enterprise file security in much the same way that medieval guards protected castle ramparts: by digging a deep moat around their perimeters and scanning the horizon for approaching threats. Today, the IT versions of crocodile-filled moats and crossbow-equipped soldiers are as outdated as King Arthur's roundtable. Perimeter security was adequate at one time, but cloud-based file sharing has changed the landscape, and IT teams need to arm themselves against risk that originates inside their own walls. Read on to find out the best ways to modernise the file-sharing strategy of your organisation.

Google has asked the US government and the FBI for permission to publish national security request data as part of its ongoing efforts to improve transparency in the wake of the Prism scandal. It is hoping that government approval of publication of the volume and nature of the FISA requests, which will be part of Google's regular Transparency Report, will show that "Google has nothing to hide." The UK is also getting caught up in the scandal after William Hague has denied accusations that GCHQ benefited from Prism by using information gathered on UK citizens through the programme from as early as June 2010. In response to claims, Hague has said: "This accusation is baseless." Well, he would, wouldn't he? Follow the link to start to get closer to the truth.