Thousands Of AT&T Customers Nationwide Experienced Outages

Based on AT&T's review, the outage was caused by the application and execution of an incorrect process used as they were expanding their network.

A nationwide AT&T network outage lasted nearly 12-hours Thursday.

Reports of cellular service loss were made in the early morning hours leading into the afternoon.

Over 74,000 customers were affected by the major cell network outage.

The incident rapidly raised questions about whether malicious activity could have caused the outage. Fears also grew over if the outage presented an ongoing threat to U.S. cell networks.

By 3pm, AT&T officially restored wireless service to customers.

The company apologized and explained there is no reason to believe the outage was due to a cyber-attack.

Based on their review, the outage was caused by the application and execution of an incorrect process used as they were expanding their network.