They'd verify your smartphone as an authorized guest, and send you an encrypted key—valid only for the length of your stay.

他们会验证你的智能手机，将你授权成为客人，然后给你发送密钥——而且只在你入住期间有效。

The attack against Hydro infected its global network of nearly 3,000 computers and encrypted key areas of the company's IT network.

针对挪威海德鲁公司的攻击感染了该公司全球近3000台电脑的网络，并加密了其IT网络的关键区域。