My Nokia 920 that I bought from Telecom about two months has suddenly developed a faulty headset jack. It only plays music through my headphones on one side (before anyone asks I have tried it with a different pair to get the same result) Obviously it is under warranty still so I'm going to be taking it back for repair. The question is, how can I make my phone as secure as possible so the repairer cant get into my details. E.g people hub, email accounts etc. It might be a broad question but any tips on how to lock down these sorts of tiles/accounts would be great.