Boeing began Monday installing “workplace occupancy sensors” in the main Everett office towers that use motion detectors and cameras mounted in ceiling tiles above workstations, conference rooms and common areas.

The sensors are intended to gather information that’s then analyzed using artificial intelligence to feed data to Boeing real estate and facilities managers about how many people are coming to the office and using specific spaces, and for how long.

For people already concerned about how their internet and cellphone use can be tracked outside work, this new form of workplace surveillance proved unwelcome, despite Boeing’s insistence that it doesn’t invade anyone’s personal privacy.

The plan was outlined to employees last week and one was creeped out enough at the prospect to share the PowerPoint presentation with The Seattle Times.

“It scared me to my core,” said the employee, who declined to provide their name. “What you can see is, to say the least, evil.”