Cookies Are Our Friends...
Cookies Are Harmless
Rest assured, despite what you've heard about "tracking cookies" or other
tales of how you can be harmed or violated by cookies, they are actually not
in any way a real security risk to Internet users. There is a major
misconception about cookies, who can use them, how & when they can be
used, and what data they can collect. Even cookies branded as "data miners"
that "track web usage data" are not nearly as bad as they're often made out to
be. For your protection, cookies are not human-readable and can only be read
by the web server that sets it - and only while you are actually loading
content from that website. They can never contain personally identifying
information unless you have provided it to the website and the website places
it in a cookie in order to provide a personalized experience while you're on
their site. Cookies contain ZERO executable code whatsoever and can't search
your computer for financial data while you're asleep or be used for anything
other than providing the website that created the cookie with data that
website generated and placed into that cookie...
Types of Cookies
There are two types of cookies. The first type is a first-party cookie. This
type of cookie is set by the actual website you're visiting. These cookies
can store information used to properly display the website, as well as any
user-specific information generated based your browser capabilities and/or
information you've provided to the website. 1st-party cookies that track
usage data will only keep track of your activity on their website, and again,
only while you're on their website. The data is usually used in their efforts
to keep their websites fresh with content that users want to visit (or with
products that users are actually interested in).
The second type is a third-party cookie. These cookies are usually set when
you visit a website that displays advertisements or other content within their
pages that is served by another web server. They are read any time you visit a
website that displays content from that server. Just like 1st-party cookies,
these can only be read by the server that sets it. Such cookies are generally
used to collect demographic information about how their content is displayed.
Again, these cookies never contain any personally identifiable information
unless you willingly provide it to the server that sets the cookie.
The closest thing to personally identifying information that can be stored in
a cookie without your knowledge is your IP address. However, even if you
don't allow cookies, a website can still get your IP address because any time
you do anything on the internet, your computer sends this info as an automatic
and necessary part of the communication. Without it, the web server will not
know where to send responses to your HTTP requests.
The main security threat to people through normal web surfing is malicious
websites that use Java and similar plugins that can automatically download,
install and execute applications without your permission by exploiting
security holes (usually in Internet Explorer). For the most part, this can
be solved by not visiting questionable websites and by keeping your system
current on security updates. Cookies by themselves are no threat to anyone
and are an important behind-the-scenes part of how just about any good
website functions.
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