Cloudfare experienced the biggest ever Distributed Denial of Service (DDoS) attack on a French website. The attack was confirmed on Twitter by CloudFlare's CEO Matthew Prince, who said that it's "the start of ugly things to come" because "someone's got a big, new cannon." The attack reached the record breaking capacity of 325-400 Gigabits per second. Before this only Spamhaus, has faced such high capacity attack during March last year.

Two vulnerabilities in International Components for Unicode might allow remote attackers to cause a Denial of Service condition.

A security researcher has discovered a new flaw in Snapchat that allows users to deliver a denial of service attack against individual iOS or Android users, or alternatively more easily deliver spam to a large number of users. It is the latest in a series of problems experienced by Snapchat over the last few months.