Motorola Electronic TatooIt sounds like something straight out of an old science fiction novel. But Motorola says that tattoos providing proof of a user’s identity could one day replace the need for passwords altogether.

According to Motorola’s chief executive Dennis Woodside, the company has been experimenting with the idea for some time. They are also not the first company to do so, as Nokia has previously experimented with  magnetic tattoos that do the same. But readers might be surprised to find that these latest trials have been much more successful than those of the past.

Engineering firm MC10 has already created a working prototype. The result is a highly flexible, silicone based microchip that can be placed into the skin.

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