Her dilemma: Do I let my employer microchip me?

“Melissa Timmins has a week to decide: Does she keep her hand to herself, or does she let her employer microchip it?

The implant is the size of a grain of rice. It would slip under the skin between her forefinger and thumb. It would sting for only a second. Then she could unlock doors or log onto her computer with a wave. Her flesh could hold her credit card, her medical records, her passport . . .

“At first, I thought it was a joke,” she said.

Timmins, 46, works in sales at Three Square Market, a Wisconsin company that makes vending-machine software. The offer came after her boss returned from a business trip in Stockholm, where he encountered Biohax Sweden, a start-up that aims to endow body parts with technological power.”