For four years Erin Kistler, a product manager with nearly 20 years of experience, applied for thousands of jobs at companies including PayPal, Microsoft and Netflix and never received an interview, her CV disappearing into what she describes as a black hole. The Guardian reports a rise in lawsuits over the use of AI in employment decisions in the United States, where companies increasingly turn to automated tools to make faster hiring and firing decisions under the guise of objectivity, raising questions about discrimination and secrecy.