Expert: U.S. not pushing back hard enough on China, Russia on cyber attacks

(CNN) – Hackers infiltrated the computer networks at the U.S. State Department and the timing of this revelation could not have been more awkward.

At around the same time that President Obama was shaking hands with Chinese President Xi Jinping and Russian President Vladimir Putin over the weekend, what are widely suspected to have been Chinese and/or Russian cyber terrorists hit the State Department e-mail system, which shut down to investigate and plug security holes after "activity of concern" was detected.

This latest attack comes on the heels of attempted cyber attacks on the systems at the White House and other government agencies.

Is the government's most important information adequately protected from our enemies. And is the government's response time quick enough?

Former executive assistant director at the FBI for cyber investigations and now president of Crowdstrike, a security technology firm, Shawn Henry joins CNN's "The Lead with Jake Tapper" to discuss.