LAS VEGAS—For more than a decade at the Black Hat USA and DefCon security conferences, researchers have studied and hacked computing technology. At the 2015 events held here from Aug. 3 to 9, a key theme was the growing world of the Internet of things, particularly the connected car. A highlight of the Black Hat USA 2015 event was a session detailing how two researchers found flaws that led to the recall of 1.4 million Chrysler vehicles. DefCon housed a whole car hacking village, including real cars like the Tesla that attendees could touch and attempt to hack. As the world moves to the Internet of things, the need to keep things open, while still being secure (a theme that Jennifer Granick, director of civil liberties at the Stanford Center for Internet and Society, discussed in a Black Hat keynote). While breaking things is part of the Black Hat experience, so too is fixing them. Google announced at the conference that it was issuing the largest update ever for Android in an attempt to fix the Stagefright flaw that affects 950 million Android devices. Here’s a look at highlights of the Black Hat USA and DefCon 2015 conferences.

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