Maryland will allow Big Tech to track if someone with the coronavirus comes near you. Should you let them?

You probably want to know if you’ve come in contact with someone who has tested positive for the coronavirus.

But questions like who else would know, and what they might do with that information, have made some wary of a new cellphone notification tool developed by Apple and Google that Maryland will be among the first states to use.

Gov. Larry Hogan announced this week that the state would adopt the tech giants’ jointly developed software, Exposure Notification Express, or ENX, which uses smartphones to alert users if they have had contact over the past 14 days with someone who has tested positive for the virus.