Houston police are investigating the discovery. It's made many female employees at Hobby Airport very uncomfortable and as we told travelers what happened, it was alarming to them, too.
For one Houston Hobby Airport employee, going to work hasn't been the same the past few days.
"It was in a secure area. How can that happen to us?" said the employee, who did not want to be identified.
It's a discovery that left female employees speechless.
"I didn't know what to say. I was like, 'Oh my God, a camera,'" she said.
This employee says she saw a wire coming out of what appeared to be an old thermostat but didn't think much about it until another employee took a closer look and could even see the lens of the hidden camera.
"That's your most private moment in the whole wide world is in the bathroom. You don't even share that with your husband, and all of us ladies are completely devastated over that," the employee told us.
Houston police say the camera has been removed and the vice division is now investigating how it got there.
"I feel like a victim. I've been totally violated," the employee said.
Investigators say the camera in the bathroom is a criminal violation, and while this one was discovered in an employee restroom, female travelers throughout the entire airport were disturbed when we told them about the discovery.
"That's absolutely scary. I'm from Atlanta and that's been in the news there as well, so I hope this isn't a disturbing trend about Peeping Toms," traveler Janet Hill said.
"I think it's awful. I think they probably need to make sure that all of the restrooms are cleared out," traveler Pamela Barrett said.
"If it's that easy for them to get into the employee restroom, how easy would it be to get into any restroom or any place that it's supposed to be private, a fitting room?" traveler Charla St. Amant said.
This employee says she is speaking on behalf of the many women with whom she works.
"I want him to go to jail. I want him to go to jail for what he has done to us," the employee said.
The Houston Airport System is referring all comments to investigators.
If you have any information, you are asked to call Houston police.