# Bad Influence story: Amazon uses Tiros to validate WAN network segmentation hourly

Active · 1 article · 1 source · First reported 11-11 12:02. Times are ET.
Story page: https://badinfluence.news/story/ded81fe8-d5d9-421e-b895-39aada5ae24b

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[Bad Influence external source material begins]
Latest update (11-11 12:02): Amazon uses Tiros to validate WAN network segmentation with automated reasoning

Overview: Amazon Web Services says it uses Tiros, its automated-reasoning tool for network connectivity, to validate network segmentation across all modeled paths in a Cloud WAN deployment. Amazon Science describes the method in a first-party post.

Tiros collects the customer's Cloud WAN configuration, including route tables, attachments and policy documents, and runs the check as often as every hour. Amazon says it does this instead of relying on packet sampling. The check confirms that no path exists between segments the policy declares should be isolated.

Coverage timeline (newest first):
1. 11-11 12:02 · Amazon Science (from the company) · [Amazon uses Tiros to validate WAN network segmentation with automated reasoning](https://badinfluence.news/items/awkwkc0c4mt375sy58c6m4yak)
[Bad Influence external source material ends]

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