The use of pirated or unauthorized serial numbers, on the other hand, is a serious issue. Software piracy is a form of intellectual property theft that can result in severe consequences, including fines and imprisonment. Moreover, using pirated software can also expose users to malware and security risks, as pirated software often contains malicious code.
: Adobe has shut down many of its legacy activation servers. This means even users with valid, legal serial numbers frequently face errors like "This serial number is not valid" or "Activation failed" when trying to reinstall on newer systems. Risks of Using Unauthorized Serial Numbers