Keygens are often flagged by antivirus software as "Trojan" or "Riskware." While some are false positives, downloading these tools from untrusted sources can lead to actual malware infections.

Cracking software can sometimes lead to unexpected crashes or the inability to install official service packs and security updates.

If you are a freelancer or small firm, delivering client files created with cracked software is unethical and potentially illegal. If discovered, you could lose your reputation, contracts, and face lawsuits.