COMSOL AB actively monitors torrent swarms. In the US and EU, using pirated engineering software on a company computer can result in fines exceeding $150,000 per instance. Even for students, universities share DMCA notices with internet providers.
Most crack files (keygens, patches, loaders) contain Trojan horses, ransomware, or keyloggers. Because this software is from 2008, modern antivirus software scans these old cracks aggressively. You are likely to download a RAT (Remote Access Trojan) that gives a hacker control of your computer. Comsol Multiphysics 3.5a Free Download
The entire point of Comsol is to simulate reality. If you use a cracked version, the solver may be intentionally corrupted by the cracker (or fail silently). You cannot trust a single result from a pirated simulation. If you publish a paper or design a bridge based on pirate software, you are risking lives and careers. COMSOL AB actively monitors torrent swarms