A new study confirms what many internet users know all too well: harassment is a common part of online life.
The first-of-its-kind report by the Pew Research Centre found that nearly three-quarters of American adult internet users have witnessed online harassment. Forty per cent have experienced it themselves.
The types of harassment Pew asked about range from name-calling to physical threats, sexual harassment and stalking. Half of those harassed say they didn't know the person who had most recently attacked them.
Young adults - people 18 to 29 - were the most likely age group to see and undergo online harassment. Women aged 18 to 24 were disproportionately the victims of stalking and sexual harassment, according to the survey. And people who have more information available about themselves online, work in the tech industry or promote themselves on the internet, were also more likely to be harassed.
Starting mid-year, people involved in an online campaign termed "Gamergate" have been harassing several prominent women in the video game industry and their supporters for criticising the lack of diversity in games and how women are portrayed. One of the targets, Brianna Wu, a software engineer and founder of game developer Giant Spacekat, says she has frequently been harassed online, but it's worse this year.