Why is Adobe Flash Player not safe?

Adobe Flash Player is considered unsafe primarily due to its frequent security vulnerabilities that have been exploited by cybercriminals for malware distribution and attacks. Despite Adobe's attempts to patch these vulnerabilities, the software's architecture has inherent weaknesses, making it a continual target. Additionally, Adobe officially ended support for Flash Player on December 31, 2020, meaning it no longer receives updates or security fixes, further increasing its risks. As a result, using Flash Player poses significant security threats to users and their systems.