tgnm

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);

tgnm

public interface ILoginView
{
  string Username { get; set; }
  string Password { get; set; }
  bool RememberMe { get; }

  event Action Login();
  event Action Exit();
}