A year into their experiment, McMullan and a few employees say they are still using the chips regularly at work for all the activities they started out with last summer. Since then, an additional 30 employees have gotten the chips, which means that roughly 80 of the company’s now 250 employees, or nearly a third, are walking, talking cyborgs.

“You get used to it; it’s easy,” McMullan says. As far as he knows, just two Three Square Market employees have had their chips removed—and that was when they left the company.

Sam Bengtson, a software engineer, says he uses his chip 10 to 15 times a day. At this point, swiping his hand over an RFID reader plugged into his computer is no different from typing in his password on a keyboard, he says.

Steve Kassekert, vice president of finance, is so used to using his hand to pay for soda at work that he was annoyed when the RFID reader on the vending machine went down a couple of months ago.

“It’s just become such a part of my routine,” he says.

The company is also exploring some ways to use microchips outside the body. McMullan says in August and September it is running tests at two hospitals—one in Fort Wayne, Indiana, and another in Hudson, Wisconsin—that will verify when doctors and nurses wash their hands. (They’ll wear bracelets incorporating a chip that they can scan on an RFID reader to turn on a sink—something that has been tried before.)

Nick Anderson, an associate professor in public health sciences at the University of California, Davis, says the privacy and security of any information stored on the chips is an obvious concern. The information gathered by readers could give lots of details about employees’ comings and goings, and someone could in theory ping your chip with a reader to find out what’s on it.

“You can sniff it if you’re at a bus stop,” he says.

McMullan says only some of the information stored on the chip in his hand is encrypted, but he argues that similar personal information could be stolen from his wallet, too.

There’s also the chance—and it seems certain to happen eventually—that the technology inside the employees’ bodies will become outdated. Bengtson, at least, is concerned about this.

“There may need to be a—dare I say—upgrade program, or something like that,” he says.

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://www.technologyreview.com/s/611884/this-company-embeds-microchips-in-its-employees-and-they-love-it/