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  • Jun 9 2021: Fastly internet outage explained: How one customer broke Amazon, Reddit and half the web

Jun 9 2021: Fastly internet outage explained: How one customer broke Amazon, Reddit and half the web

Back In The Day: Edition 2023-11-04

The recent Fastly outage, which took down major websites including Amazon, Reddit and the BBC, was caused by a single unnamed customer making a "valid configuration change", according to a blog post by the company.

Fastly said a bug in a mid-May software deployment could take down 85% of its network if triggered in specific circumstances. The company said it had detected the disruption within a minute and had identified the cause within 49 minutes, adding it was "truly sorry" for the outage.

Amazon Web Services, the company's cloud computing division, experienced an outage on Tuesday, affecting everything from news publications to transportation apps to Amazon's own Ring security cameras. It's the latest in a string of widespread AWS outages over the past few years.

How many businesses and systems that we interact with on a daily basis are supported by AWS's cloud services?

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