Cyber attackThe world’s largest anti-spam service Spamhouse, supporting black lists for popular browsers, as well as helping users to block unauthorized advertising, today underwent the largest DDoS-attack in Internet history.

Wheeled traffic flow intensity reached 300 Gbit / s. Output Server Spamhouse have noticed people around the world. This has resulted in increasing the volume of the incident in user mailboxes spam, as well as the unavailability of black lists of unreliable sites.

In Spamhouse say fix DDoS-flow traffic from the beginning of March, but now it has reached its peak. Vincent Hanna, a spokesman Spamhouse says that some of the service capacity remains available during the attack, so a small portion of users are still able to receive the data to be filtered.

The company CloudFlare, the organizers of DDoS-attacks Spamhouse used power of multiple botnets to generate junk traffic. While experts have difficulty with the technical details of mega-attack. The company Akamai, which provides services for the delivery of content, note that according to their data from inaccessible areas and were also several Internet providers.

CloudFlare and Akamai promise later publish more detailed information about the attack.