00:00The dreaded blue screen, the first sign of major trouble ahead.
00:07On a Friday afternoon, the unprecedented IT meltdown showed just how much we rely on technology
00:13as the scale of the outage became clear.
00:16Queues at airports grew by the minute.
00:18What can you do?
00:19You just sit and wait and hope that you get there.
00:22Confused travellers greeted by blue screens instead of boarding passes.
00:27I just have no idea what's going on and no one's sort of communicated what's going on.
00:32Checkouts at supermarkets failed, leaving thousands of customers empty-handed.
00:37Online banking was impacted, as were government departments, universities and law firms.
00:42Even the media wasn't spared as TV and radio stations improvised on the go.
00:48Cyber experts say it's the biggest outage the world has seen.
00:52Without a shadow of a doubt, it is the biggest.
00:54You can see its impact in many countries.
00:57Australia got hit first because we were still awake when the update happened.
01:01But as the world woke up, you can see it rolling across the world and it's had a significant impact.
01:07The cause was a bug in a software update from the cyber security program CrowdStrike.
01:12The program itself sits deeply embedded in operating systems, including Microsoft.
01:18It could take days, even weeks, to clean up the mess.
01:21And that will depend on an organisation's disk encryption and ability to push out a fix at scale.
01:27Many of the institutions that use this sort of software don't just have a few hundred,
01:31they might have thousands and thousands, tens of thousands of workstations.
01:37And, you know, so that's going to be a really big headache for them.
01:41It really demonstrates that we need to be not just cyber secure, but cyber resilient.
01:46You need resilience so that you can have a workaround if you just can't access what you need to access.
01:52Thankfully not a cyber attack, but a nightmare nonetheless.
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