Anatomy of attack is not known. It seems that hackers exploited SQL injection flaw on the president website and managed to upload their message.
The hacker group left a message to the president on the hacked Web site with links to Facebook profiles of the hackers, as shown in above screenshot.
List of other govt hacked websites:
Complete message from Anonymous Philippines left on the page:
Greetings, President Aquino! We have watched how you signed into law a bill that endangers and tramples upon the citizenship freedom of speech and expression. Now, we are silent witnesses as to how you are mishandling the Sabah issue. We did not engage the Malaysian hackers who invaded our cyberspace since we expected you to appropriately and judiciously act on the same, but you failed us. You did nothing while our fellow brothers are being butchered by the Malaysian forces, and while our women and children become subject of human rights abuses. If you can’t act on the issue as the Philippine President, at least do something as a fellow Filipino. We are watching.
We are Anonymous
We are Legion
We do not forgive
we do not forget
united as one
divided by zero
At the time of writing, most of the government websites are restored.