You may want to think twice before using someone else’s charger next time your iPhone’s battery life is running low. Three researchers at the Georgia Institute of Technology claim to have invented a charger that can install malware on an iPhone, iPad or iPod touch. The team will show off a proof-of-concept of the hack at the BlackHat security conference in late July, however until then they are revealing little about the method. The hack apparently does not require a jailbroken device or user interaction and works on any Apple device running the latest version of iOS. At the conference, the team will “recommend ways in which users can protect themselves and suggest security features Apple could implement to make the attacks we describe substantially more difficult to pull off.” The BlackHat security conference is scheduled to take place between July 27th and August 1st in Las Vegas.