The risks of torrenting engineering software, the reality of "verified" torrent claims, and official, safe alternatives for accessing this vital RF and microwave design tool are detailed below. The Risks of "Verified" Torrent Files
If you need EM simulation but do not strictly require the HFSS solver engine, the open-source community provides robust alternatives that are completely free and legal: ansys hfss 15 torrent upd verified
To help you find the right legal tool for your specific project, tell me: The risks of torrenting engineering software, the reality