Senator Elizabeth Warren renewed her call to break up Big Tech following a massive Amazon Web Services outage. She argues that if one company can disrupt access to dozens of vital platforms, its power is too great.

A major glitch in Amazon Web Services brought down a host of popular platforms, from Snapchat to Ring, in a domino effect felt worldwide. Multiple sources reported that the disruption lasted for hours, underscoring the internet’s reliance on a single cloud provider.

An overnight outage at Amazon Web Services left internet users around the world scrambling to access popular sites and apps. Though AWS officials say they have fully mitigated the DNS issue, the ripple effects continue to cause intermittent service disruptions.