At the D11 conference, Regina Dugan, Senior Vice President for advanced technology and projects at Motorola, showed off some… well, advanced projects. The first was a prototype electronic tattoo, which she quipped “teenagers might not want to wear a watch, but you can be sure they’ll wear a tattoo just to piss off their parents.” The second technology was the real show stealer: a pill from Proteus Digital Health that you can swallow and which is then powered by the acid in your stomach. Once ingested, it creates an 18-bit signal in your body — and thereby makes your entire person an “authentication token.” Dugan called it “vitamin authentication.”

Motorola CEO Dennis Woodside added that the Proteus pill has already been approved by the FDA. Stay tuned for more information regarding the Proteus “password” pill.

Brian Farmer is Highsnobiety's Managing Editor and is based in New York City.

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