James Comey:

There are two kinds of big companies in the United States. There are those who've been hacked by the Chinese and those who don't know they've been hacked by the Chinese.

Josh Bryant:

Some of the biggest companies in the world have security that is only as good as a minimum-wage phone support worker who has the power to reset your account. And they have valid business reasons for giving them this power.

Andrea Peterson and Craig Timberg:

In an era of soaring national investment in cyber-security, the weakest link often involves the inherent fallibility of humans.

Ed Felten:

It's prudent to assume that anything on your phone is potentially at risk.

Barack Obama:

There is a reason why BlackBerrys and iPhones are not allowed in the White House Situation Room.

Dan Kaminsky:

We've migrated so much of our economy to computer networks because they are faster and more efficient, but there are side effects.

Kevin Mandia:

Ninety five percent of networks are compromised in some way.

Jerry Michalski:

Most of the devices exposed on the internet will be vulnerable. They will also be prone to unintended consequences: they will do things nobody designed for beforehand, most of which will be undesirable.

David Sanger:

The recent attacks on the financial firms raise the possibility that the banks may not be up to the job of defending themselves.

FBI:

Cyber threats pose one of the gravest national security dangers to the United States. The FBI stands ready to assist any US company that is the victim of a destructive cyber attack or breach of confidential business information.

Omner Barajas:

There is undeniable evidence that our dependence on interconnected technology is defeating our ability to secure it.

Lillian Ablon, a security researcher at the RAND Corporation:

The ability to attack is certainly outpacing the ability to defend.

Bruce Schneier:

That we live in a world where we aren't sure if any given cyberattack is the work of a foreign government or a couple of guys should be scary to us all.

Michael Riley:

He thought the attack would change everything, that it would force the U.S. to get serious about preparing for a new era of conflict by computer. He was wrong.

Mike Rogers, House Intelligence Committee Chairman:

If anybody in the federal government tells you that they've got this figured out in terms of how to respond to an aggressive cyber attack, then tell me their names, because they shouldn't be there.

AP:

Although the government is projected to spend $65bn on cybersecurity contracts between 2015 and 2020, many experts believe the effort is not enough.

Eric Schmidt and Jared Cohen:

What Lockheed Martin was to the twentieth century, technology and cyber-security companies will be to the twenty-first.