I was using Facebook today and, after replying politely to someone about how stupid his comment on something was, Mr. John Doe, who I never met before, sent me this message:


  You wanna get hacked, huh? In less than 3 minutes I was able to get your dynamic IP, PPPoE and mask (your machine is pretty vulnerable). 
  But stay calm and call your computer technician. Best wishes


Can he hack my Facebook account just with that? I think he was bluffing or something.

If it helps, I am using a regular DSL wireless router, a desktop computer with a USB Wi-Fi receiver and the machine has Windows 7. By the way, I changed the router administration password as soon as I got the wireless router, months before this happened.

Your IP is a public address and has nothing to do with your Facebook account. Just knowing it does not help someone to 'hack' you. In the same way, knowing your IP does not increase your threat of your computer being hacked. 

He's blustering. 
