Convert SecureString to String

ConvertUnsafeString

public static string ConvertToUnsecureString(this SecureString securePassword)
{
    if (securePassword == null)
        throw new ArgumentNullException("securePassword");

    IntPtr unmanagedString = IntPtr.Zero;
    try
    {
        unmanagedString = Marshal.SecureStringToGlobalAllocUnicode(securePassword);
        return Marshal.PtrToStringUni(unmanagedString);
    }
    finally
    {
        Marshal.ZeroFreeGlobalAllocUnicode(unmanagedString);
    }
}