How to safeguard your sites
1. Don't use obvious passwords. According to analysis of recently hacked software service Adobe, millions of people still use basic combinations such as "12345678" or "password".
"One possibility is to pick a sentence and use the first letter of each word in it, adding in a capital, a number and the name of the service provider," said Conor Flynn of ISAS. "That's a relatively strong, unique password." Other experts also advise using a 'non-alpha' character, such as an exclamation or question mark.
2. Try to change your passwords regularly. In an environment where many breaches are never disclosed, this is the best way of protecting against intrusion. Experts say you should change passwords every six months at the outset.
3. While keeping track of multiple passwords is tricky, online services and apps such as 1Password and LastPass allow you to store all passwords in one secure (passworded) place.
4. Try to make passwords as long as possible. Many hacking programs can crack a six-letter combination in minutes. But a nine-letter combination can often take weeks or months, putting hackers off.
5. Try to avoid information related to yourself in the password, such as a date of birth. This is more guessable.