The largest assault clocked in at 300 billion bits per second, according to San Francisco-based CloudFlare, which Spamhaus enlisted to help it weather the onslaught. Photograph: Dave Thompson/PA Wire

A Dutch citizen arrested in north-east Spain on suspicion of launching what is described as the biggest cyberattack in internet history operate(...)

Fiber optic cables carrying internet providers are seen running into a server room in New York. Photograph: Mike Segar/Reuters

A squabble between a group fighting spam and a Dutch company that hosts websites said to be sending spam has escalated into one of the largest(...)