These
days nearly everyone uses at least one social networking site. Social
networking sites potentially expose users to a myriad of security risks
including social engineering and malicious code attacks.
So
what can you do to try to protect yourself? Here are some tips from the United
States Computer Emergency Readiness Team (US-CERT):
Limit the amount of personal information
you post -
Do not post information that would make you vulnerable, such as your address or
information about your schedule or routine. If your connections post
information about you, make sure the combined information is not more than you
would be comfortable with strangers knowing. Also be considerate when posting
information, including photos, about your connections.
Remember that the internet is a public
resource -
Only post information you are comfortable with anyone seeing. This includes
information and photos in your profile and in blogs and other forums. Also,
once you post information online, you can't retract it. Even if you remove the
information from a site, saved or cached versions may still exist on other
people's machines.
Be wary of strangers - The internet
makes it easy for people to misrepresent their identities and motives. Consider
limiting the people who are allowed to contact you on these sites. If you
interact with people you do not know, be cautious about the amount of
information you reveal or agreeing to meet them in person.
Be skeptical - Don't believe
everything you read online. People may post false or misleading information
about various topics, including their own identities. This is not necessarily
done with malicious intent; it could be unintentional, an exaggeration, or a
joke. Take appropriate precautions, though, and try to verify the authenticity
of any information before taking any action.
Evaluate your settings - Take advantage of
a site's privacy settings. The default settings for some sites may allow anyone
to see your profile. You can customize your settings to restrict access to only
certain people. However, there is risk that even this private information could
be exposed, so don't post anything that you wouldn't want the public to see.
Also, be cautious when deciding which applications to enable, and check your
settings to see what information the applications will be able to access.
Use strong passwords - Protect your
account with passwords that cannot easily be guessed. If your password is
compromised, someone else may be able to access your account and pretend to be
you.
Check privacy policies - Some sites may
share information such as email addresses or user preferences with other
companies. This may lead to an increase in spam. Also, try to locate the policy
for handling referrals to make sure that you do not unintentionally sign your
friends up for spam. Some sites will continue to send email messages to anyone
you refer until they join.
Use
and maintain anti-virus software - Anti-virus software recognizes most known
viruses and protects your computer against them, so you may be able to detect
and remove the virus before it can do any damage. Because attackers are
continually writing new viruses, it is important to keep your definitions up to
date.
Introduction – Social
Networking and Security Risks
With
any new tool or application, it is always important to keep a close watch on
its security implications. Facebook comes with its own set of security concerns
which can put your information systems and/or personal data at risk. This article
will look at some of these risks and identify possible solutions to help
protect you, your personal information and your company data.
Facebook
- Three
of the most popular features of Facebook are the ability to add Friends, update
your status and run applications such as games and quizzes. A “Friend” is
anyone on the Facebook network whom you allow to see various levels of personal
information, such as job, birth date, photos, group membership, comments and
list of other Friends. You can even play online games and keep others updated
on your daily life. Friends can also see Friends of Friends, meaning
individuals, whom you have officially befriended and may never have met, may
have visibility into your personal information and whereabouts.
Updates
- At
the top of the user’s Facebook profile is the Update field, which allows the
user to post a sentence or paragraph regarding any topic at any time. Here are
some examples of updates that my Facebook friends have recently posted. These
are very typical:
»» “Just received a job offer.
Hooray!”
»» “I’m tired of all the rain.”
»» “Looking forward to the family
vacation next week at Disney World.”
Although
these might seem relatively harmless, the third bullet point could raise some
concern. You have just told all your friends, as well as all their friends,
that you will be away from home for a full week. This is comparable to putting
a sign on the main road that shouts “Empty House” for passers-by to see. Even
if you have a burglar alarm or neighbors keeping an occasional eye on the home,
you still don’t want to create the temptation for strangers (Friends of
Friends) to consider helping them to that wonderful, new 52” flat screen TV you
just purchased.