: Cracked software can be buggy, prone to crashing, or unable to receive critical security updates from the official developer.
Modern malware is modular. A warez download might include an "infostealer" that harvests:
Many high-quality, open-source software solutions are available for free. These software solutions are developed by communities and are completely legal to use.
Ironically, the "crack" that makes warez software run is also the most privileged software on your machine. Legitimate software runs with standard user rights. A crack, by definition, must modify system files or running processes. To do this, you must right-click and "Run as Administrator." You are voluntarily giving full kernel-level access to an unknown person on a warez forum. This is the primary infection vector for 99% of consumer malware.
Legitimate surplus license keys from bankrupt companies are sold on sites like eBay or specialized resellers for 10% of retail price. Be cautious, but this is legal.
The most immediate consequence of downloading warez software is legal liability. While individuals are rarely the primary target of federal raids, you are not immune to prosecution.