2 factor definitely. This was a wake-up call to get serious. You can spend a lifetime creating a good reputation and loose it all in 5 minutes.
And if anyone on Steemit is re-using passwords... please stop doing that. I bit the bullet a while back and started using KeePass (open source) password manager. I have mega strong passwords on my Steemit keys and everything else important these days, and so should you.
Remember, your Steem Power and bitcoins just may be your retirement fund.... protect them!