The notorious hacking group "ShinyHunters" claims to have stolen private user data from web porn giant Pornhub and is demanding a ransom payment in Bitcoin to prevent the publication of the potentially embarrassing data.

Pornhub, which claims more than 100 million daily visits and 36 billion visits per year, is one of the web's most popular purveyors of sexual content, particularly videos, many of which are free to view.