The BBC is reporting that internet speeds are noticeably slower arround the world thanks to a large cyber attack.
The attack, called 'distributed denial of service' or DDoS attack targets web servers with extra traffic that so people who are trying to reach a site for legitimate purposes might be unable to do so.
The BBC says that some security experts have called this "the biggest cyber-attack in history."
The cyber attacks were focused on a non-profit group in London and Geneva called Spamhaus, whose goal is to help email providers filter out spam and other unwanted content.
The BBC quotes a message from Sven Olaf Kamphuis, who claims to be a spokesman for Cyberbunker, indicating that Spamhaus was abusing its position, and should not be allowed to decide "what goes and does not go on the internet".