They can not go far wrong with the most popular passwords, which are: 'password', '123456, '12345678' and 'qwerty'.
The list was compiled from millions of stolen passwords online by hackers.
'Many people continue to choose weak, easy to guess passwords, placing themselves at risk from fraud and identity theft,' said Morgan Slain, CEO of internet security firm SplashData.
Simon Ellson, a security expert for anti-virus computer firm Norton, advised computer users to come up with different passwords for each account and change each one regularly.
He said: 'The biggest mistake anyone can make is using the same password for each account as you can become more vulnerable should a cyber attack occur.
'When creating a password, ensure you use a mixture of numbers, letters or symbols and avoid using personal information, sequences or repetition, as these passwords are easier to hack.
'Never store all your passwords in the same place either, such as in a personal folder in your email account called "passwords", or rely on a website to "remember login details" – always enter them manually each time.
'Norton has a feature called Norton Identity Safe which allows you to store all your usernames and passwords in the cloud, rather than on your PC for better security.'
