>> A global cyber attack.
>> We've never seen anything on this scale.
>> It can travel from computer to computer.
>> Hospitals paralyzed, computers had shut down.
>> WannaCry is different.
>> I think WannaCry is a great example of how
nation states are impacting
businesses and ultimately individuals as well.
>> We had over 19,000
appointments cancelled and those are people who
are worried about their cancer appointment
or their appointment for an operation.
>> I was diagnosed with a heart murmur,
which was the start of the hypertrophic cardiomyopathy.
It's a very serious surgery.
I wanted my life back.
After I had my chest shaved
at 6:00 O'clock in the morning,
the doctor looked very,
not upset, but concerned, shall we say.
And he said, We've been hacked.
All our systems are down across the whole hospital.
>> He telephoned me obviously
and said, It's not going to happen.
And he was in shock.
>> Suddenly we discovered that a bit of our society,
a bit of our social infrastructure could be switched off.
WannaCry, it was kind of a warning shot.
>> The malware crippled computers across Ukraine.
>> Perhaps the most sophisticated in a series of attacks,
taking control of computers and demanding digital ransom.
The list of companies impacted
around the world is growing.
>> I think what NotPetya represents is not
just the evolution of
the attack in terms of the methodologies involved,
but also the evolution of intent.
>> [FOREIGN]
>> We have TV stations
who been on the air when their computers just died.
>> You cannot receive cash in an ATM machine
because ATMs also doesn't work.
It was a real shock for Kiev citizens.
>> Seventy-five percent of
my clients were affected by NotPetya.
Some companies were destroyed totally.
They didn't understand why they're losing their job.
Everybody's just thinking,
We hope this will never happen again.
But, I'm afraid this will happen again.
>> One of the objectives in
the cyberattacks we face is disruption.
To stop operating, to create
significant burden to the life of citizens,
governments, businesses, where the cost
of doing business or recovering is extremely high.
>> In 2017, a lot was the same.
Cyberattacks were happening,
they were effective organizations.
What changed was the impact on our lives.
>> It was the most awful time,
cause I didn't know what was going to happen now.
>> Stop and think about what it
means in real terms to real people.
It isn't a machine you're affecting,
and if it is, maybe that
machine's keeping somebody alive.
>> Ultimately, all of us pay
the price when it comes to nations,
in particular, who are attacking each
other by using "us" as the means.
What are we doing to come together?
If we don't have this conversation now,
when it happens and we all retreat behind walls,
that is when this becomes a catastrophic event globally.
And we need to do everything we can to at least talk
about these issues before it happens.