New technologies, new hacks … AllThingsD reported an illustration by Lookout Security showing how something as simple as placing a QR code on a poster could enable an attacker to take control of Google Glass.

Basically, since Glass allows users to connect to Wi-Fi by taking a picture of a QR code, it’s possible that someone could trick a Glass wearer to unwittingly join an access point that allowed someone else to remotely control Glass and to stream the display via Bluetooth.

The vulnerability has now been fixed.