A little PowerShell function and example to show how easy it is to reverse a 'SecureString' when you store the password and key in a script for automation purposes.

Powershell_Reverse-SecureString.ps1

# Reverse-SecureString
# Version: 1.0 (20130729)
# Created By: Glenn 'devalias' Grant (http://devalias.net)
# License: The MIT License (MIT) - Copyright (c) 2013 Glenn 'devalias' Grant (see http://choosealicense.com/licenses/mit/ for full license text)
function Reverse-SecureString([string]$secureString,[string]$key)
{
  $objSecString=ConvertTo-SecureString -String $secureString -Key ([Byte[]]$key.Split(" "))
  $secString=[System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($objSecString)
  $plaintext=[System.Runtime.InteropServices.Marshal]::PtrToStringAuto($secString)
  return $plaintext
}
 
# Example SecureString decryption
$password = "76492d1116743f0423413b16050a5345MgB8AFAAVwBiAGkAegBjAEcANQA5AEMAOABVAFoAUQBoADMAZAA1AEUAcgBGAHcAPQA9AHwAYgAxAGUAYwA0AGQA
YwBkADUANQAwAGUAYQBmADYAMwA5AGEANwAyADAAMwBmADAANwA3AGUANgA3ADYAYgA0AGIANgA4ADYAZAA3ADkAZgBkAGYAMgAzADcAMQA2ADkAYgA3AGMA
YwA0AGUAZQA1AGIANAA5ADEAZABjADQAZQA5ADgANQAxADUAYwBmADgAZQBjADMAMgBmADgANgBhADAANQBlADAANgBkAGIAZABlAGMAZAA2ADcAMwBmAGYA
YwA5ADMAZQAwADYAZAA5AGMAMwAyAGUANgAyAGUAMAA3ADcAYgBkADIAYQAzAGIAOAA3ADQAMwA2ADIAMAA2AA=="
$key = "114 138 230 113 215 43 58 173 155 129 196 29 105 162 10 25 187 79 18 221 142 29 155 43 28 20 19 40 103 83 110 240"
$passPlaintext = Reverse-SecureString "$password" "$key"
Write-Host $passPlaintext # This should output: TotallySecurePasswordLol!