Meta’s decision to track employee keystrokes and mouse data is causing an uproar within the company. “Selfishly, I don’t want my screen scraped because it feels like an invasion of my privacy,” wrote an engineer in an internal post seen by nearly 20,000 coworkers this week. “But zooming out, I don’t want to live in a world where humans—employees or otherwise—are exploited for their training data.”

The message aimed to rally support for a petition circulating inside the company since last Thursday that demands an end to what Meta calls the Model Capability Initiative. It’s a piece of mandatory software that Meta began installing on the laptops of US employees last month. The tool records employees’ screens when using certain apps with the goal of collecting “real examples of how people actually use” computers, including “mouse movements, clicking buttons, and navigating dropdown menus,” according to Reuters. Meta has yet to say whether the initial data is paying off.

“I’m mixed on Al. On one hand, I really enjoy using it to write software. On the other hand, I’m really nervous about its impact on the world,” the engineer wrote in an internal forum for coders. “And what kind of norms are we establishing about how the technology is used, and how people are going to be treated?”

The petition, also seen by WIRED, states that “it should not be the norm that companies of any size are permitted to exploit their employees by nonconsensually extracting their data for the purposes of Al training.”

In the US, employers generally have wide latitude to monitor workers’ devices for security, training, evaluation, and safety purposes. But using these tools to build datasets that instruct AI systems on navigating computers without human supervision appears to be a new tactic—and one that doesn’t sit right with many Meta workers. Over the past few years, several companies have jumped into the race to develop agentic AI models. But when gathering data, they have typically tapped volunteers, sometimes paid, who are willing to have their computer activity recorded.

Meta’s decision to move forward with its tracking tool despite weeks of protest from employees has become one of the leading reasons for what 16 current and former employees recently described to WIRED as record-low morale. It’s also the leading driver of an employee unionization effort at Meta’s UK offices.

“The workplace surveillance and training AI models is the number one thing,” says Eleanor Payne, a representative of United Tech and Allied Workers, which is helping organize Meta employees. She declined to specify the number of employees seeking to form a labor union but called it “significant” and unprecedented.

While only US employees are currently subjected to tracking, UK employees are concerned for their colleagues and the potential for expansion of the program. “I think of it pretty much as a breakdown of trust,” Payne says. New laws that eased unionization in the UK have encouraged employees about the chances of success, she adds.

In Meta offices in California and New York, workers have been posting flyers in cafeterias and other communal areas pointing colleagues to the petition. Two employees, speaking on the condition of anonymity because they were not authorized to speak to the media, say the company has removed some posters, with those on bathroom walls seemingly staying up longer.