反电子商务诈骗公司领头羊之一的“41st Parameter”（41st Parameter Inc.）已经开始在几家在线广告公司上测试他们的数字指纹设备。
One of the leading e-commerce fraud-prevention firms, 41st Parameter Inc., has begun testing its device-fingerprinting techniques with several online-ad companies.
授权电脑是指纹识别的、唯一可以通过加密的通信通道对网络上关键资产进行访问的设备。
Authorized computers are 'fingerprinted' and are the only devices allowed to communicate across an encrypted communications channel to critical assets on the network.
不过诺里斯也说，他也没想出有什么办法可以警告人们他们的设备已经被“数字指纹”了。
Still, Mr. Norris says it's tough to figure out how to alert people their devices are being fingerprinted.
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