Do ISP's collect and analyze traffic of users?

Tue May 16 11:35:24 UTC 2023

ISP capture traffic samplings in both directions
Upstream at aggregation points , Downstream at ingress and your DNS queries
but the last part everyone knows .
Some of the most expensive gear is used to sample and aggregate that data

On Mon, May 15, 2023 at 7:01 PM Michael Thomas <mike at mtcc.com> wrote:

>
> And maybe try to monetize it? I'm pretty sure that they can be compelled
> to do that, but do they do it for their own reasons too? Or is this way
> too much overhead to be doing en mass? (I vaguely recall that netflow,
> for example, can make routers unhappy if there is too much "flow").
>
> Obviously this is likely to depend on local laws but since this is NANOG
> we can limit it to here.
>
> Mike
>
>
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