False. The site protects your account with a password of your choice. Choose a good password and don't get hacked or infected with malware.
Well, it does protects account with a password, but that's just the basic thing. satoshidice must add 2fa for extra security.
A number of people on hear have stated that they will increase their stake in the site if they add 2FA - you'd think that would be a pretty strong incentive. I guess they had a lot of stability issues that they had to resolve first - thinks seem much better on the stability side now - so lets hope that we get 2FA soon...