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> seeking out data from shady data brokers Team Cymru is not a shady data broker. They're an internet security company that has been monitoring networks for a
by denton-scratch 4y ago
> seeking out data from shady data brokers
Team Cymru is not a shady data broker. They're an internet security company that has been monitoring networks for a couple of decades, and providing the resulting information for free. If you've never used them, it's worth taking a look. It might not be up your street, but if you're even slightly into internet sleuthing, it's gold.
- m3047 4y agoI don't know where the start or end of this is. They bought netflow data from Cymru. By itself that gets you this: https://github.com/m3047/rear_view_rpz/blob/main/utilities/PTR_Recs_Useless.md https://github.com/m3047/rear_view_rpz/blob/main/utilities/P... Passive DNS reconstruction is a real thing. I wouldn't test out a web site on its own FQDN and expect it to stay unnoticed; just sayin'. Just because the PTRs are garbage doesn't mean that Amazon, Fastly, Cloudflare don't have the data. Nuggets of truth are scattered in other comments. The GitHub tool is a political statement in and of itself.