4 ms·

Can easily be obtained by spear phishing or nmapping IP ranges.

• Kayou 12y ago
  Do you need to be on the same local network as the user to do that or does that work with an attacker being on the internet?
  • hrrsn 12y ago
    If you just need their external IP address, you can probably easily coerce that out of them by getting them to click a link. Send an IM to a bit.ly link that logs an IP and forwards on to some random image, an email, a tweet, etc.
• zdw 12y ago
  Or frequently by the email header of someone who sent mail from behind the router.