Sites hosting these files often redirect users to malicious pages designed to steal personal data or credit card information.
The notation "-No PW-" stands for "No Password," indicating that access to the content (in this case, presumably photos) does not require a password. This suggests that the content is intended to be publicly accessible or shared within a specific community where such a notation is necessary.
: Before opening, use an antivirus program to scan the file for any malware.