How One Line of Code Crashed AT&T's Long-Distance Network

1. AT&T's network, handling 70% of U.S. long-distance traffic, suffered a major disruption.
2. A New York switch's routine reset triggered a cascading failure across the network.
3. A software bug caused rapid signal succession, leading to data overwriting and system resets.
4. The failure resulted in a 9-hour outage, costing AT&T an estimated $60 million.

1. The incident exposed the fragility of telecommunications systems despite advanced technology.
2. A single line of faulty code can have widespread and costly repercussions.
3. Engineers faced unprecedented challenges in stabilizing the network during the outage.
4. The event became a notorious example of software failure in telecommunications history.

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