The Indian hacker Godzilla successfully took down several Pakistani government websites including those belonging to the president, the government, the ministry of defense, and more.
The hacker posted a message on his Facebook page, which read: "Poor Pakistan. No matter how hard you try we can bypass those [sic] security anytime we want. Before making a statement in media against India think twice."
Godzilla has attacked Pakistani government websites before, including of several ministries.
Source: Thehackernews.com, August 1, 2014.