When Olivia got a text from a co-worker a couple weeks ago that Backpage.com had been seized by the FBI and shut down, she panicked. Olivia is a sex worker specializing in body rubs and domination who is based in New York City, and for years she’s relied on Backpage, a website for posting online personals, to find and vet new clients without having to go through a pimp or work on the streets. “I just told my roommate that I’ll maybe have to move out,” she told me in an interview.