Pearson Airport warns of delays as Toronto hit by global IT issue - Action News
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Toronto

Pearson Airport warns of delays as Toronto hit by global IT issue

Air travel and some hospital operations in Toronto interrupted by a worldwide IT issue on Friday are beginning to return to normal after the outage disrupted multiple industries, including major banks and media outlets.

Porter Airlines cancelled flights until 3 p.m. ET, says operations beginning to resume

A line of travellers at Pearson International Airport in Toronto. The airport advised passengers flights could be delayed or cancelled Friday after a global outage of Crowdstrike cybersecurity software.
A line of travellers at Pearson International Airport in Toronto. The airport advised passengers flights could be delayed or cancelled Friday after a global outage of CrowdStrike cybersecurity software. (Manusha Janakiram/CBC)

Air travel and some hospital operations in Toronto interrupted by a worldwide IT issue on Friday are beginning to return to normal after the outage disrupted multiple industries, including major banks and media outlets.

Porter Airlines, which cancelled flights until 3 p.m. Friday, says it is now in the "early stages" of resuming normal services.

"Operations are restarting after today's third-party system outage affecting multiple global industries. As systems come online, passengers may check their current flight status on http://flyporter.com or via our mobile app," the airline said at 2:30 p.m.You can find more information here.

Porter wasn't the the only airline affected.

Aspokesperson from Toronto's Pearson Airport told CBC News the impacts varied "airline to airline," with Air Canada, Westjet, Sunwing and Flair'sflights on track. Several American carriers sawdisruptions, however.

"Some international arrivals are advising of delays this evening. Be sure to check the flight status of both arriving and departing flights before heading to the airport,"Pearson said in a statement.

WATCH | How the IT disruption is affecting devices:

How the IT outage is affecting devices using CrowdStrike

2 months ago
Duration 3:59
Canadians woke up Friday to a global tech outage disrupting operations in multiple industries. Cybersecurity firm Crowdstrikes Falcon Sensor software caused Microsoft Windows to crash and display a blue error screen. Cybersecurity and tech analyst Ritesh Kotak explains how the outage impacted subscribed to Crowdstrike and what mitigation actions Microsoft might be taking.

The University Health Network (UHN), which runs a number of hospitals in the city, confirmed it had todealwith challenges.

"Clinical activity is continuing as scheduled, but some patients may experience delays," it said in a statement.

Later on Friday, UHN said: "We are returning to regular operation after the global IT outage. No additional delays to patient appointments are expected. Thank you for your understanding."

Transit, emergency services working as they should

Toronto's 911 and paramedic servicesare working as they should, and the TTC said its signal and safety systems are fully operational. If anything changes, the transit agency said it will let riders know.

Similarly, Metrolinx said its trains and buses are running normally.

Passengers at Billy Bishop airport in downtown Toronto after all morning flights were cancelled Friday.
Passengers at Billy Bishop airport in downtown Toronto after flights were cancelled until Friday afternoon. (Jrmie Bergeron/CBC)

So what causedthe problems? According to an alert sent by global cybersecurity firm CrowdStrike to its clients and reviewed by Reuters, the company's Falcon Sensor software is causing Microsoft Windows to crash and display a blue screen, known informally as the "blue screen of death."

When will it be fixed? CrowdStrike's CEO said on X, formerly Twitter,the issue has been "identified, isolated and a fix has been deployed" but it's unclear how long that will take.