You specifically mentioned "zip password." This is the single biggest security vulnerability regarding KMSPico.

Searching specifically for the "Portable" version increases your risk profile. Because portable applications do not require installation, they are the favored delivery method for certain types of malware, specifically:

If you run a portable EXE file that you extracted from a password-protected zip, you are bypassing your antivirus's real-time scanning during the extraction process. This is exactly what malicious actors want.

It is important to remember that KMSPico is an illegal tool that violates Microsoft’s Terms of Service. Using it violates copyright laws in many jurisdictions.

If the cost of a license is the issue, consider safer alternatives: