Operation Manual
48 - Internet and online security
Choose strong passwords and keep them safe
Passwords are a fact of life on the internet today; we use them for 
everything from ordering flowers and online banking to logging into 
our favorite airline web site to see how many miles we have 
accumulated. The following tips can help make your online 
experiences secure: 
• Selecting a password that cannot be easily guessed is the first step 
toward keeping passwords secure and out of the wrong hands. 
Strong passwords have eight characters or more and use a 
combination of letters, numbers and symbols (e.g., # $ % ! ?). Avoid 
using any of the following as your password: your login name, 
anything based on your personal information such as your last 
name, and words that can be found in the dictionary, especially 
"password." Try to select especially strong, unique passwords for 
protecting activities like online banking. 
• Keep your passwords in a safe place and try not to use the same 
password for every service you use online. 
• Change passwords on a regular basis, at least every 90 days. This 
can limit the damage caused by someone who has already gained 
access to your account. If you notice something suspicious with one 
of your online accounts, one of the first steps you can take is to 
change your password. 
Protect your personal information
Exercise caution when sharing personal information such as your 
name, home address, phone number, and email address online. To 
take advantage of many online services, you will inevitably have to 
provide personal information in order to handle billing and shipping of 
purchased goods. Since not divulging any personal information is 
rarely possible, the following list contains some advice for how to 
share personal information safely online: 
• Keep an eye out for phony email messages. Things that indicate 
a message may be fraudulent are misspellings, poor grammar, odd 
phrasing, web site addresses with strange extensions, web site 
addresses that are entirely numbers where there are normally 
words, and anything else out of the ordinary. Additionally, phishing 
messages will often tell you that you have to act quickly to keep your 
account open, update your security, or urge you to provide 










