Jawbone wants to become a part of the workday. The company's new service, UP for Groups, will sell discounted fitness trackers to corporate customers who buy in bulk and subscribe to a monitoring service that aggregates data from all the devices.

The target: employers who think nudging their workers toward healthier habits is worth the investment. Jawbone already has been circling the workplace market, and some companies have adopted its bracelets as a way to encourage employees to walk more. But it wasn't until this fall, with the release of Jawbone's cheapest tracking device, that there was an inexpensive option for larger orders. 

Computers housing the world’s most sensitive data are usually isolated from the internet. They’re also not connected to other systems that are internet-connected, and their Bluetooth feature is disabled, too. Sometimes, workers are not even allowed to bring mobile phones within range of the computers.

All of this is done to keep important data out of the hands of remote hackers. But these security measures may be futile in the face of a new technique researchers in Israel have developed for stealthily extracting sensitive data from isolated machines — using radio frequency signals and a mobile phone. The attack recalls a method the NSA has been secretly using for at least six years to siphon data in a similar manner.