A European luxury hotel is going back to the basics, replacing its electronic key cards with lock and key. And with good reason.
원문출처 : http://www.cnn.com/2017/01/30/europe/hackers-lock-out-hotel-guests-trnd/index.html
원문출처 : http://www.cnn.com/2017/01/30/europe/hackers-lock-out-hotel-guests-trnd/index.html