Warning over password security
Experts say that passwords used to log onto the internet and access confidential information such as bank details should be altered at least once a month, both at home and at work.
The warning comes as a survey suggests more than half of computer users never change their passwords, and many use words that can be easily guessed.
The study published by the online bank Egg says users even leave passwords written on Post-It notes attached to their computers.
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