AT&T Outage Triggered by Company Work on Network Expansion
- Company says no evidence of cyber attack in wireless failure
- Tens of thousands of AT&T customers reported problems
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AT&T Inc. said a widespread outage that took hours to resolve Thursday was caused by “an incorrect process” while expanding the wireless network.
The software issue interrupted wireless service for hundreds of thousands of subscribers and prompted the FBI and US Department of Homeland Security to investigate the outage.