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Top 5 tips for protecting your data online (and getting an imaginary pet dog)

5. Use your imagination

Image: R Philipson (Flickr)

Lots of sites are still using bad security questions and it's an easy way to get your account swiped. Common questions like 'what is the name of your pet?' and 'what is your mother's maiden name?' are actually pretty easy to get the answers to. Friends with your mum on a social network or like to tweet about your cat? Yeah, you're busted.

The way to get around this is simply to use your imagination. I always pick the 'what is the name of your pet?' question because I don't actually have a pet but I do have an imaginary dog. Only I know his name and since he's not real he never appears in photos on Facebook or does something cute I need share on Twitter. He is my imaginary password recovery dog and you shouldn't wait until Christmas to get one.

4. Use KeePass and go crazy with the long passwords

If you don't have an imagination or you do and your imaginary dog is called "password" you can use the program KeePass to securely hold a list of passwords and even generate random ones for you. KeePass has one master password which allows you to copy and paste your other passwords into your browser. This way you only need to remember one password so you can make the others as complicated and as unhackable as you want.

3. Don't let your online accounts go solo

Where possible, always link a secondary email address to an account. Gmail lets you do it and it's a great idea. Even if your password gets compromised it can be possible to get your account back this way. And since another password secured account is safer than a security question you're better off having it this way. Just don't have the same password for your primary and secondary email addresses.

2. The password is dead! Long live the passphrase!

A password (emphasis on 'word') can be brute forced especially if your password is a word in the dictionary. Far more difficult to get at are passwords that are strings of words put together - passphrases. A string of random words is tricky to remember but if you pick a sentence it's much easier to recall. "ThisIsMyExcellentWorkPassword" with some numbers and punctuation in it is actually a pretty good password.

1. Hack yourself

My recent article, 'How I hacked my own life', showed that there is a staggering array of information available about you on the internet. I found pretty much everything I needed in order to give someone a good shot at cracking open some of my online events.

Only by actively trying to hack your accounts can you really be sure how it easy it is to get into them and only by looking through your public social media presences can you know what information you've divulged that might be used to crack open your online world.

Next week I lay into the 3 most irritating ads of 2009. Subscribe via RSS to make sure that you don't miss out.

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