Why are your files on your iMac that were previously password protected on your PC encrypted after data transfer?

When you transfer passWord-protected files from a PC to an iMac, the encryption method used by the PC may not be compatible with macOS, causing the files to become encrypted during the transfer process. Additionally, macOS may apply its own encryption standards to ensure security, which can alter the file's accessibility. This is often a result of differences in file system architecture and security protocols between the two operating systems. To access these files, you may need to decrypt them using the original software or tools compatible with both systems.