The Internet is ubiquitous. It allows attacks from anywhere in the world. Attackers can loop in from many different Internet providers.

This requires a close relationship between military and law enforcement.

We are working closely with the Philippine National Bureau of Investigation and they are looking at one subject.

Unlike the original 'ILOVEYOU' virus, this one appears to have started, at least in significant part, in the United States rather than spreading from Asia to Europe to the United States.

Users should exercise caution when reading their e-mail for the next few days and bring unusual messages to the attention of their system administrator.

People need to be much more vigilant in looking at e-mails. Just as with the original Love Letter virus, the e-mail will appear to come from someone you know.

Our mission is to try to help protect the nation's critical infrastructures. Somebody sitting with a laptop computer and a modem connection on the other side of the world can attack those things if they don't have good security.

It is not at all unreasonable to expect the people and the groups who engage in those activities every day might focus their activities at the same time around the date change.

I think we will see more activity in the Philippines in the next day or two. I'm hopeful that we'll have a successful resolution of this case.

But we shouldn't act as though the private sector doesn't have its act together and the government does. There are also significant vulnerabilities in government.