A $70 homemade device on show at one of the biggest hacking conferences on the planet has revealed how thieves could trick you into handing over your iCloud password (or any other credentials for that matter) without you even noticing. 

 
The makeshift contraption, which looks like something the Joker would use to set off a minor explosion, caused chaos at Def Con as part of a research project designed to “have a laugh” while also revealing to people just how important it is to turn off your Bluetooth properly if you want your iPhone to be safe from unwanted overtures. 

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