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National Cyber Alert System |
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Cyber Security Tip
ST04-013 |
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Protecting
Your Privacy
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Before
submitting
your
email
address
or other
personal
information
online,
you need
to be
sure
that the
privacy
of that
information
will be
protected.
To
protect
your
identity
and
prevent
an
attacker
from
easily
accessing
additional
information
about
you,
avoid
providing
certain
personal
information
such as
your
birth
date and
social
security
number
online.
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How do you
know if your
privacy is being
protected?
-
Privacy
policy -
Before
submitting
your name,
email
address, or
other
personal
information
on a
website,
look for the
site's
privacy
policy. This
policy
should state
how the
information
will be used
and whether
or not the
information
will be
distributed
to other
organizations.
Companies
sometimes
share
information
with partner
vendors who
offer
related
products or
may offer
options to
subscribe to
particular
mailing
lists. Look
for
indications
that you are
being added
to mailing
lists by
default—failing
to deselect
those
options may
lead to
unwanted
spam. If you
cannot find
a privacy
policy on a
website,
consider
contacting
the company
to inquire
about the
policy
before you
submit
personal
information,
or find an
alternate
site.
Privacy
policies
sometimes
change, so
you may want
to review
them
periodically.
-
Evidence
that your
information
is being
encrypted
- To protect
attackers
from
hijacking
your
information,
any personal
information
submitted
online
should be
encrypted so
that it can
only be read
by the
appropriate
recipient.
Many sites
use SSL, or
secure
sockets
layer, to
encrypt
information.
Indications
that your
information
will be
encrypted
include a
URL that
begins with
"https:"
instead of
"http:" and
a lock icon
in the
bottom right
corner of
the window
(see
Understanding
Web Site
Certificates
for more
information).
Some sites
also
indicate
whether the
data is
encrypted
when it is
stored. If
data is
encrypted in
transit but
stored
insecurely,
an attacker
who is able
to break
into the
vendor's
system could
access your
personal
information.
What
additional steps
can you take to
protect your
privacy?
- Do
business
with
credible
companies
- Before
supplying
any
information
online,
consider the
answers to
the
following
questions:
do you trust
the
business? is
it an
established
organization
with a
credible
reputation?
does the
information
on the site
suggest that
there is a
concern for
the privacy
of user
information?
is there
legitimate
contact
information
provided?
- Do
not use your
primary
email
address in
online
submissions
- Submitting
your email
address
could result
in spam. If
you do not
want your
primary
email
account
flooded with
unwanted
messages,
consider
opening an
additional
email
account for
use online
(see
Reducing
Spam for
more
information).
Make sure to
log in to
the account
on a regular
basis in
case the
vendor sends
information
about
changes to
policies.
- Avoid
submitting
credit card
information
online -
Some
companies
offer a
phone number
you can use
to provide
your credit
card
information.
Although
this does
not
guarantee
that the
information
will not be
compromised,
it
eliminates
the
possibility
that
attackers
will be able
to hijack it
during the
submission
process.
-
Devote one
credit card
to online
purchases
- To
minimize the
potential
damage of an
attacker
gaining
access to
your credit
card
information,
consider
opening a
credit card
account for
use only
online. Keep
a minimum
credit line
on the
account to
limit the
amount of
charges an
attacker can
accumulate.
- Avoid
using debit
cards for
online
purchases
- Credit
cards
usually
offer some
protection
against
identity
theft and
may limit
the monetary
amount you
will be
responsible
for paying.
Debit cards,
however, do
not offer
that
protection.
Because the
charges are
immediately
deducted
from your
account, an
attacker who
obtains your
account
information
may empty
your bank
account
before you
even realize
it.
- Take
advantage of
options to
limit
exposure of
private
information
- Default
options on
certain
websites may
be chosen
for
convenience,
not for
security.
For example,
avoid
allowing a
website to
remember
your
password. If
your
password is
stored, your
profile and
any account
information
you have
provided on
that site is
readily
available if
an attacker
gains access
to your
computer.
Also,
evaluate
your
settings on
websites
used for
social
networking.
The nature
of those
sites is to
share
information,
but you can
restrict
access to
certain
information
so that you
limit who
can see what
(see
Staying Safe
on Social
Network
Sites
for more
information).
Author:
Mindi McDowell
Copyright
2004 Carnegie
Mellon
University.
Terms of use
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Last updated October
8, 2009
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