The internet, argues Kim Cameron, who works as "Identity Architect" at Microsoft, "was built without a way to know who and what you are connecting to". That is bad enough in the private sector, where the only thing at stake is money. For dealing with government, it is potentially catastrophic. Technology can-just about-tell how an internet user got online. It can check the authenticity of passwords and logins, and validate smart cards or biometric checks. But such data, even if encrypted, can be stolen, borrowed, guessed or intercepted.
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