By Rob Waugh
A woman became an internet celebrity this week after an iPhone app, iGotYa, took a picture of her as she tried to unlock a stolen phone.
The app covertly took an image of the woman outside a Brighton nightclub - her name is unknown, and it's not clear whether she stole the phone or knew if it was stolen - and sent it to its rightful owner.
The app, iGotYa, isn't available through Apple's official store - but there are a lot of free and paid-for security apps that can offer peace of mind when a device is lost.