BBC, Trump web attacks "just the start," says hacktivist group

The group that claimed responsibility for taking down the BBC's global website last week has said the attack was "just the start."

On Saturday, a group calling itself New World Hacking also claimed responsibility for an attack that downed Republican presidential candidate Donald Trump's campaign website for about an hour.

The cause of the attack was a massive distributed denial-of-service (DDoS) attack, which relies on pummeling a web server with so much traffic that it crumbles under the weight and stops responding. DDoS attacks are widely used, and simple to carry out, often by online groups with the aim of bringing down websites for extended periods.