username: shawnshi
PS C:\Windows\system32> $username
shawnshi
PS C:\Windows\system32> $pwd = Read-Host -asSecureString "Password"
Password: *****
PS C:\Windows\system32> $PWD
System.Security.SecureString
>> PtrToStringAuto([Runtime.InteropServices.Marshal]::`
>> SecureStringToBSTR($pwd))
>>
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