The internet is not always a welcoming place for women. This weekend, Kim Kardashian and Vanessa Hudgens became the latest celebrities to have private photosstolen from their phones and distributed on the internet. Recent attacks on these and other famous women have shined a spotlight on problems that non-celebrity women have been trying to get people to pay attention to for years, like revenge porn attacks and graphic threats of sexual assault. University of Maryland legal scholar Danielle Citron is a leading expert on these issues.