Popular prostitution and escort forums in the Netherlands and Italy have suffered data breaches that exposed the usernames, email addresses, and hashed passwords for their registered members. Hookers.nl forum members are scrambling to prevent their exposure by requesting their accounts be deleted, but unfortunately the database has been stolen and damage is already done. Many sex workers post on the forums using aliases to hide their identity in order to avoid their activities from being discovered by family members or employers. Members who left reviews of services are worried their activities would now be exposed to employers, family members, spouses, and criminals who will try to use this information to blackmail them.
Source: https://www.bleepingcomputer.com/news/security/hacker-selling-user-info-stolen-from-prostitution-forums/