Property tech companies are helping landlords spy on residents, collect their data, and even evict them. Critics are calling it an invasion of privacy that could reinforce inequality.

“It clearly seems to be a racist way of saying: ‘Look through your tenants who you don’t want to live here and replace them with tenants who you do,'” Erin McElroy, a researcher at the AI Now Institute and cofounder of the Anti-Eviction Mapping Project, told Business Insider.