Hide password in Command prompt

@echo off

set "psCommand=powershell -Command "$pword = read-host 'Enter Password' -AsSecureString ; ^
    $BSTR=[System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($pword); ^
        [System.Runtime.InteropServices.Marshal]::PtrToStringAuto($BSTR)""

for /f "usebackq delims=" %%p in (`%psCommand%`) do set password=%%p

echo %password%

This trick reads a password on Windows without echoing it to the screen by calling PowerShell from a batch file and using a SecureString prompt, so the typed characters do not appear in the console.

Masking input is a small but useful courtesy in scripts that ask for credentials. Note that hiding the characters guards against shoulder surfing, not against the value being readable once it is in memory.