This is the Global News Podcast from the BBC World Service.

I'm Andrew Peach and at 13 hours GMT on Friday the 19th of July,

these are our main stories.

A software update by a cyber security firm crowd strike has caused major computer problems worldwide.

Hundreds of flights have been cancelled, banks, broadcasters and hospitals are among the others affected.

A court in Russia has found the American journalist

Evan Gerschkovich guilty of espionage and sentenced him to 16 years in prison.

Also in this podcast, Donald Trump describes Saturday's assassination attempt to

Republicans in Milwaukee. I'm not supposed to be here tonight. I stand before you in this arena only by the grace of Almighty God.

And the most powerful man in Vietnam has died at the age of 80.

Let's start the podcast with the software defect which has caused computer chaos around the world.

It sounds like a small thing, but it's brought flights to a standstill, stopped stock

exchanges from trading, and disrupted everything from hospitals to supermarkets.

The fault is due to a cyber security company crowd strike.

Its chief executive George Kurtz told NBC News, they know what the issue is, they've fixed it,

but it could take some time for systems to recover. He said they were deeply sorry for the impact on customers.

I've been talking to our business correspondent in Singapore, Nick Marsh.

George Kurtz at Crowd Strike is going to be a very relieved man now that they've actually

finally found that problem and they've deployed that fix, but that's only the start of it.

You know, identifying it as one thing, but actually making sure that each individual

end point is the jargon computer basically is effectively rebooted, you know, turned off and

turned on again, so they can actually as it were absorb

...