25% service during DoubleClick attack

The hack attack launched on Tuesday against ad provider DoubleClick -- and the knock-on effect for its 900 customers -- left many of the world's most popular websites delivering content "less than 25 per cent of the time", according to monitoring company Keynote Systems. Targeting DoubleClick proved a clever way of subverting the touted strength-through-decentralisation of the internet.
Washington Post