Most doxxing campaigns only last a few days. But the effects can be felt for months

Content warning: This story contains vulgar language, threats of sexual violence and death threats.

Posters of some of those kidnapped by Hamas in Israel are displayed on a pole in Manhattan. (Spencer Platt/Getty Images)

Doxxing — the practice of publishing someone's private information for revenge or punishment — has been around since the early days of the internet. It's been used against reporters, law enforcement personnel and women speaking out against sexual abuse.