Scammers are hacking into WordPress and Blogger sites and using the hacked accounts to create posts stating that the blogger’s computer has been hacked and that they were recorded while using adult web sites. These types of threats is called sextortion and are typically send via email to recipients whose information was disclosed in data breaches. Once they gain access to an account, they create a new blog post containing a similar extortion threat that users typically receive via email. From just three bitcoin addresses that BleepingComputer commonly saw listed in the blog posts, the attackers have generated approximately 12 bitcoins.
Source: https://www.bleepingcomputer.com/news/security/blogger-and-wordpress-sites-hacked-to-show-sextortion-scams/