1. Do you run a TOR node?
2. Do you use a wireless router?
3. Have you checked your system for malware and verified your open ports?
4. Do you have a firewall?
1) Do not use Tor to torrent...read here:
https://blog.torproject.org/blog/bittorrent-over-tor-isnt-good-idea2) Your wireless (unless customized for tor/proxies) router will not prevent or anonymize your traffic from ISP eyes.
3) Possibility, but highly doubt it. Still always good to check to make sure it is not a phishing attack.
4) This is not doing anything to help with the issue...unless you are trying to use a torrent client, and it is being blocked.
OP: When you torrent, unless it is free software under a non-restrictive license...you run the risk of being found out. That is the inherent danger of downloading things that have copyrights. There are two things to do here, 1) Stop torrent illegal things for a while, let it cool down. 2) When you do download, check your trackers, and use a peer block that will stop known lists of IP's used to find individuals with files illegal gotten. A good tracker will stop the brunt force of the risk associated with torrenting by auto-blocking RIAA, and other entities. A peer-block is a list or filter that blocks known bad IPs from connecting to the swarm/ more specifically you since I believe it is implemented client side.
Another option depending on the amount you do torrent, consider
tor guard which will (very generally) encrypt your torrent traffic so your ISP does not see that you are downloading illegal things, but it won't stop them from knowing that you are torrenting. I believe they offer VPNs as well....also consider a seedbox.
All in all, don't be stupid. Don't torrent or open files without verifying file integrity. Check reviews of the torrent on the websites you do visit. And for the love of god employ some common sense. Check out the guides here, or Google search for ways to limit your exposure of getting caught.