It is extremely common to search for cracked versions of Apple's pro software.
: In your client preferences, don't set your upload limit to "Unlimited." Leaving a small amount of upload bandwidth free actually helps your download speed by allowing your client to communicate more effectively with the swarm.
macOS has a security feature called Gatekeeper that blocks unverified apps. Malicious torrents often include instructions on how to bypass this (e.g., "Right-click to open" or terminal commands like xattr -cr ).
Apple's ecosystem is generally secure, but torrented files are the primary exception. Cybercriminals use "cracks" and "installers" as bait.
Transmission 4.0.3 MacOS: Torrent downloads slow down ... - GitHub