Top 11 Network Outages And Application Failures Of 2025
Networkworld, Friday, January 30th, 2026
ThousandEyes released its list of the 11 most notable Internet outages and application issues of 2025, along with recommendations to help network teams improve resilience.
System outages plagued organizations of all sizes in 2025, with major incidents exposing vulnerabilities across network infrastructure and the IT dependencies that define today's distributed environments, according to the latest Internet outage report from Cisco ThousandEyes.
The network intelligence vendor's recap of the most impactful outages highlights key trends, including the frequency of backend configuration changes causing major disruptions and the growing complexity of dependency chains. Notable 2025 outages include Asana's back-to-back configuration mishaps, Zoom's DNS disappearing act, and AWS DynamoDB's regional failure that impacted services globally.