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Surveillance of the Internet Backbone

published on 2021-08-25 15:13:48 UTC by Bruce Schneier
Content:

Vice has an article about how data brokers sell access to the Internet backbone. This is netflow data. It’s useful for cybersecurity forensics, but can also be used for things like tracing VPN activity.

At a high level, netflow data creates a picture of traffic flow and volume across a network. It can show which server communicated with another, information that may ordinarily only be available to the server owner or the ISP carrying the traffic. Crucially, this data can be used for, among other things, tracking traffic through virtual private networks, which are used to mask where someone is connecting to a server from, and by extension, their approximate physical location.

In the hands of some governments, that could be dangerous.

Article: Surveillance of the Internet Backbone - published about 3 years ago.

https://www.schneier.com/blog/archives/2021/08/surveillance-of-the-internet-backbone.html   
Published: 2021 08 25 15:13:48
Received: 2021 08 25 16:06:15
Feed: Schneier on Security
Source: Schneier on Security
Category: Cyber Security
Topic: Cyber Security
Views: 1

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