United Airlines System Outage Leads to Grounded Flights Nationwide

The airline said it expected additional flight delays through Wednesday night “as we work through the issue.”

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Russia Counters Ukrainian Drones by Turning Off Russians’ Mobile Internet

The same data networks that enable phone apps and web surfing help drones navigate, so officials are imposing daily, patchwork shutdowns. The actions can be very disruptive to daily life.

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Alaska Airlines Grounds Entire Fleet After IT Outage

Alaska Airlines said the outage would lead to “residual impacts” to its operations overnight to its mainline fleet and the planes that fly under the Horizon Air brand.

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:( Microsoft’s ‘Blue Screen of Death’ Is Going Away

The blue screen that stressed computer users for more than three decades is giving way to a black one.

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American Airlines Flights Snarled by Computer Glitch

A systems outage temporarily grounded some planes on Friday, causing headaches for both crew and passengers around the United States.

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Potential Cyberattack Scrambles Columbia University Computer Systems

Images of a smiling President Trump popped up on some screens, although they could not be conclusively linked to the episode.

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Colorado Air Traffic Controllers Lost Contact With Some Airplanes Monday

Controllers switched frequencies and planes were “safely separated,” officials said. The 90-second outage on Monday followed communications problems at Newark airport.

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Newark Airport’s Issues: What to Know

Many flights have been delayed at the busy hub because of radar outages, shortages of air traffic controllers and construction on a runway.

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Flights Could Be Disrupted Across U.S., Transportation Secretary Warns

After a series of problems at Newark Liberty International Airport, the secretary, Sean Duffy, said that he would meet with airline leaders to plan a scaling back of Newark flights.

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Newark Airport Suffers Another Radar Outage

The air traffic control mishap early Friday morning added to disruptions in recent days that have intensified concerns about safety at one of the busiest U.S. airports.

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