Intimate life is under constant surveillance. Firms track people’s periods, hot flashes, abortions, sexual assaults, sex toy use, sexual fantasies, and nude photos. Individuals hardly appreciate the extent of the monitoring, and even if they did, little could be done to curtail it. What is big business for firms is a big risk for individuals. Corporate intimate surveillance undermines sexual privacy—the social norms that manage access to, and information about, human bodies, sex, sexuality, gender, and sexual and reproductive health. At stake is sexual autonomy, self-expression, dignity, intimacy, and equality. So are people’s jobs, housing, insurance, and other life opportunities. Women and minorities shoulder a disproportionate amount of ...