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Alexandria Ocasio-Cortez to break the company up. And it prompted calls from legislators like Rep. While the outage was frustrating for daily users of Instagram and Facebook, it was far more problematic for the millions of people who use WhatsApp as a primary communication tool. Four hours later, Schroepfer tweeted, “We are experiencing networking issues and teams are working as fast as possible to debug and restore as fast as possible.” Meanwhile, the company offered no explanations. Shortly after the outage occurred, Facebook spokesperson Andy Stone tweeted that the company was working to restore access to its apps. Even Adam Mosseri, the head of Instagram, nodded to the broad extent of the outage, tweeting that it 'does feel like a snow day.'

Others reported that the badges they use to enter Facebook buildings had stopped working. A number of employees told BuzzFeed News that they could not receive emails from outside addresses.

Inside Facebook, the outage wreaked havoc across several crucial internal systems.

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