Mine uses an 8-digit password for the website, plus another 6-digit one for transactions. On top of that you have to authorize the computer you use (they send y

Mine uses an 8-digit password for the website, plus another 6-digit one for transactions. On top of that you have to authorize the computer you use (they send you an SMS with a code if you log in from a new computer). I don't know how they uniquely identify your system, but the technology is Java-based.