When you set up a new Wi-Fi network, you're probably conditioned by now to check the "WPA2" box. You may not specifically know when or why someone advised you to do this, but it was solid advice. Wi-Fi Protected Access 2 is the current industry standard that encrypts traffic on Wi-Fi networks to thwart eavesdroppers. And since it's been the secure option since 2004, WPA2 networks are absolutely everywhere. They're also, it turns out, vulnerable to cryptographic attack.
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