thank you to shaimaa khalil in tokyo.sly know that this is a global it event and crowdstrike, the company that has just given a statement saying they are actively working with customers impacted by a defect which was found in a single content update for windows hosts and mac and linux hosts aren't affected but what does that all mean? let's speak to a tech expert who is joining us live now, stephan hair. it is so embarrassing because it is actually so simple in one sense, crowdstrike which is a cybersecurity firm which tries to protect your phones devices like laptops did a software update, so normally does things get rolled out and it got sent around the world because it has a 24% market share and a flawed security update has a massive impact globally, so that is what has happened, and the problem is that we think of fixing it will require a manualfix, e:g., people will have to go and actually tamper with their own computer, so that analysis at this point in time and that may change but it is notjust a case of crowdstrik

our correspondent in tokyo, shaimaa khalil, has been looking at the issues across the asia—pacific region of the outage has varied in the asia—pacific region. if you speak to our colleagues in south korea, for example, they've barely felt it. here injapan, it's been a mixed bag. we've been hearing this "blue screen of death" many times throughout the day. thankfully, we haven't seen many of those here injapan — especially where i am here in shibuya, in the heart of the capital, tokyo, famous for its screens and its neon lights. these have been going strong. in narita airport, for example, one of the country's biggest airports, the budget airline jetstarjapan has been affected and had to ground 20 — at least 20 of its flights and again, we've been seeing these pictures of people manually being checked in, these whiteboards with handwritten notes of cancellations. all in all, i would sayjapan had gotten off lightly. compare that to australia. this outage has affected them deeply, and on so many levels — universities, government agencies, blood donation centres, for example. our colleagues a

in a moment, we'll speak to our correspondent shaimaa khalil in tokyo — but first let's go to ione wells been particularly affected, what's the latest? . �* , particularly affected, what's the latest? ., �* , ., latest? that's right, the main im act latest? that's right, the main impact on _ latest? that's right, the main impact on the _ latest? that's right, the main impact on the us _ latest? that's right, the main impact on the us has - latest? that's right, the main impact on the us has been i latest? that's right, the mainj impact on the us has been on latest? that's right, the main - impact on the us has been on airline travel. we know about 5000 flights delayed and 2000 cancelled completely. the airline worst affected as delta, the world's second largest by passenger numbers and they are a big hub in atlanta, georgia has seen huge queues, people seeing multiple flights cancelled, travel chaos. also pictures around the us of those blue screens of death, boards with no updates to what is going on, what is happening to bags and people's flights so there is a lot of confusion. at this

our correspondent in tokyo, shaimaa khalil, has been looking at the issues across the asia—pacific region is varied in the asia—pacific region. if you speak to our colleagues in south korea, for example, they've barely felt it. here injapan, it's been a mixed bag. we've been hearing this blue screen of death many times throughout the day. thankfully we haven't seen many of those here injapan, especially were i am here in shibuya, the heart of the capital tokyo, famous for its screens and its neon lights. these have been going strong. in narita airport, for example, one of the country's biggest airports, the budget airlinejetstarjapan has been affected and had to ground at least 20 of its flights. and again we've been seeing these pictures of people manually being checked in, these whiteboards with handwritten notes of cancellations. all in all, i would sayjapan had gotten off lightly. compare that to australia, this outage has affected them deeply and on so many levels. universities, government agencies, blood donation centres. for example, our colleagues at the abc news australia said th