And when will it be fixed? We answer the key questions here; Blue screens, queues and airport delays worldwide. Verkkocrowdstrike sued by shareholders over global outage. Professor kamila hawthorne, chair of the royal college of gps, told the bbc it was. Verkkowidespread cellphone outages in the u. s. Thursday morning primarily affecting at&t customers were a result a software update, or “the. Verkkoat&t’s widespread outage that left thousands without service for hours thursday was likely caused by a process error — not a cyberattack, the. Verkkotens of thousands of at&t customers across the country found themselves without cellular service this morning. This caused disruptions to 911.