Eva Galperin: What you need to know about stalkerware

Full access to a person's phone is the next best thing to full access to a person's mind, says cybersecurity expert Eva Galperin. In an urgent talk, she describes the emerging danger of stalkerware -- software designed to spy on someone by gaining access to their devices without their knowledge -- and calls on antivirus companies to recognize these programs as malicious in order to discourage abusers and protect victims.