Over the weekend, cybercriminals managed to hijack Justin Biebers 50 million follower Twitter account. The attackers used the compromised account to lure the pop artists fans to a website offering Twitter followers and other similar services. The spam tweets were written in Indonesian and included shortened links. The links pointed to a website called rumahfollowers(dot)tk. This site is no longer accessible, but it appears to be a service that offers Instagram and Tw…