Comment by theamk
1 month ago
Mac address is absolutely safe in IPv4 world - the only info it gives is the network card manufacturer.
And people don't usually share "curl ipinfo.io" output unless they plan to share their external IP (unlike "ifconfig" output, which is one of the first things you want to share for any sort of networking problems)
See the top comment in this thread:
Target #2 [IPv6] gives aways 90% of the game at attacking it (we even leak some device specific information, so you know precisely where it's weak points are)
You may not consider Mac address to he important, but the context of this conversation did bring it up. Of course they forgot the fact that most v6 addressing doesn't expose Mac addresses anymore.