Good Password Practices

Use different passwords for your computer and online services. And it is good to segment your online service passwords, or keep them altogether different.  I have seen a number of systems for doing this; some bad, some mediocre, and some extremely sophisticated.  My favorite involves a root password that varies depending on the year, and

Do you need administrative privileges?

Use an account on your computer that doesn’t have administrative privileges to reduce the likelihood of installing malware; and to reduce the likelihood of making severe and catastrophic changes to your system.  Password protect the “administrator” account, and create a “limited” user account for daily use.   Most system administrators adhere to the principle of