Not the entire balance was transferred, only 0.01417377 BTC. Remaining 0.00160802 BTC was sent back to your wallet as 'change'.
Are you sure you didn't send this yourself? Because if someone was stealing your coins, he would transfer all of it, not partial amount.
Hmm that's weird. Maybe he scammed himself somehow? lol
That was I'm thinking, what he only claim and steal is 0.0014, and not all in my account

But before that, I did two deposits to the site to start some few rounds in gambling..
after loosing, I look again in my wallet to deposit some few coins again. But when I looked at its balance I lost 0.014 already.
I already tried looking at the transaction logs on the site but I didnt really deposit that much.
And would never deposit that much, cause I can already play a lot in a few coins

I wont try to scam myself :/ since I was trying to make it bigger.
That address 1EJcTLZNfy9HALtgovGuUJbLi1ERmoo6uZ seems to steal more:
Public Note: yesterday you hacked my account and took $9000. i'm in seriously danger of physical harm right now. i only need $7000 to pay off the debt. can you please send back $7000 and keep the other $2000. please help. i need the money more than you do right now.
And you can indeed see a 18 BTC transaction before that.
So I do assume his story is true.
My guess again is someone who hacked another website, stole the database and matched the hacked emails/passwords to the blockchain.info wallet.
but how could he possibly do that? Is it possible to do that?
I tried to look at that accounts history and saw a lot of transactions other than me in just a few hours..