Turn on SteamGuard

Steamguard, keepass + dropbox for log in. Not much else.

read the book that tells you the most common 15 million passwords and stick away from them. keep you pc secure so dont P2P stuff and keep your anti malware and firewall and virus scanner upto-date

its easy, dont download any sity steam crack/hack

Use SteamGuard, make sure your e-mail and Steam password are completely different. Have your passwords be at least 12 characters long with upper and lowercase letters, numbers and special characters. Don't click links from people on your friends list that want you to log in to Steam.

the best passwords are just a series of letters and numbers from a phrase only you kniow, or have reference too.

The eight of Clubs and the Jack of Diamonds for instance, easy to remember, but T8oCatJoD is not so easy, or easy to guess.

that is not my password bt the way...

Dont download anything that will help you get free games and no site should ask for your password besides the sites like this that has the Steam api login.

Steamguard always ON!

That is easy. Type your credit card information, your NIC, and user name and password and put it up on youtube in a video called "Nigerians rape me please" and they will happily secure your account.

Having the email and steam passwords different helps.
Turn on Steam Guard.

Steamguard on - Use different passwords for every account you have.

Also keep in mind that password length can arguably be the most important aspect of creating a password. You're exponentially more secure using a password that you can remember like 'gorillacarkeysbanana' than you are with a password like 'jrks2012'. It's all about the key count and making sure you don't forget your own password.

Fairly on track with what I'm saying: http://www.cs.cmu.edu/~help/security/choosing_passwords.html#good

na, don't listen to these people. listen to me. first, give me your steam id and pw, then your email and pw. i'll secure everything for you. i'm good at this

Here, this should help you.

Also, make your Steam Password unique + Steam Guard on.

I would suggest a password with 10 characters containing random letters (not words), numbers and symbols. Write it on a piece of paper and stick it on your screen, turn off auto login so you have to type in the password until you memorize it. Then destroy the paper. As others suggested activate Steam Guard, have a good anti-virus, never give your password (no Valve employee would ask for it so there's no need to give it to anyone), use different passwords for every site you use (at least important websites like email, ebank, steam, paypal, etc) have a good anti-virus program installed, be watchful for phishing sites, don't use cheating programs/hacks (not only you'll be banned from VAC secures servers most of them will just steal your account anyway).

I'm very proud of my steam account (+250 games, 8 year tenure, good standings all around, unique items in TF for playing for so long, etc.) so I can really relate to your paranoia... I really do wish Valve would enhance the security of Steam by introducing account blocking after x unsuccessful login attempts, a login authenticator (like Blizzard or some ebanking sites have) and maybe a system similar to facebook (once my account got blocked due to login attempts from India (I'm from Portugal) and I had to unblock it from my email). Maybe some of these ideas are redundant having steam guard... But still... I have a feeling an account like mine would be somewhat desirable. And that scares me...

pro tip: don't share your information

get a bodyguard .

turn on steam guard + strong password+write down ur game key incase ur steam account is hijacked. so support can prove that account is urs.

How secure is your email account? That's how secure your steam account is.