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A major AWS glitch on Oct. 20, 2025, crashed Canvas, disrupting U.S. schools' online learning.
On October 20, 2025, a widespread outage of the Canvas learning platform disrupted college and K-12 education across the U.S., as a failure in Amazon Web Services' infrastructure—specifically a malfunction in an internal monitoring subsystem—caused connectivity issues affecting multiple services.
The disruption, which impacted institutions including Tufts, UW-La Crosse, and Cornell, led to inaccessible course materials, submission delays, and degraded performance, with some systems remaining down into the afternoon.
The incident highlighted vulnerabilities in education technology reliant on major cloud providers, as similar outages affected platforms like Snapchat, Disney+, and United Airlines.
AWS confirmed ongoing recovery efforts, but no clear restoration timeline was provided.
Un fallo importante de AWS el 20 de octubre de 2025 estrelló Canvas, interrumpiendo el aprendizaje en línea de las escuelas de los Estados Unidos.