Internet privacy and how to protect it is a growing concern for many users. In the past, these worries were focused on what we share intentionally: our identities, our personal details, the opinions we post in public forums. In recent years, however, the focus of concern has shifted. Web analytics have become more sophisticated and, as a result, targeted advertising has become incredibly specific. Privacy advocates are worried about pervasive website tracking too, and they have their eye on the main culprit: cookies! In this SlideShare, learn what cookies are, how to disable them, and how to keep them from coming back from the dead.

1. © 2016 eSOZO Computer & Network Services • www.esozo.comZombie Cookies: What They Are and How To Disable Them

2. © 2016 eSOZO Computer & Network Services • www.esozo.com
Internet Privacy & Website Tracking
Yesterday you emailed a friend to tell them about how much the kids love
the new swimming pool, and today every ad on Facebook is trying to sell you
inflatable rafts.
What’s going on here?
How did they KNOW?
If you’re a little creeped out about these eerily specific ads you’re not alone.
Privacy advocates are worried about website tracking too, and they have
their eye on the main culprit: cookies!

3. © 2016 eSOZO Computer & Network Services • www.esozo.com
Cookies go back to the early days of the World Wide
Web. In 1994, developers at Netscape were trying to
figure out how to make online shopping work. The
website needed a way to “remember” who the
customer was and what they wanted to buy.
Thus, the web cookie was born.
Cookies: Delicious or Evil?
Without cookies, the internet as we know it simply
would not function. There is nothing good or evil
(or yummy) about them; they are just tools.

4. © 2016 eSOZO Computer & Network Services • www.esozo.com
First-party cookies
• Are “set” by the website you are visiting.
• Used for basic functions, such as remembering your
preferences.
• Keeps track of how many times you’ve visited the page.
• Once you leave the webpage, the first-party cookie has
nothing left to do.
First-Party vs Third-Party Cookies

5. © 2016 eSOZO Computer & Network Services • www.esozo.com
Third-party cookies
• Are set by a different webpage than the one you are visiting.
• The sources are often advertisements or widgets.
• Are used to track you across multiple websites and monitor your
views, clicks, and anything else that might be relevant for
marketing analysis.
• The third-party cookie can spy on you from ANY website that
displays an ad or widget from the same domain that set it in the
first place.
• This information is collected by the advertiser to construct a
picture about who you are and what you like.
First-Party vs Third-Party Cookies

6. © 2016 eSOZO Computer & Network Services • www.esozo.com
Third-Party Cookies
Blocking Third-Party Cookies
Firefox
Tools > Options > Privacy
Uncheck "Accept third-party
cookies.”
Google Chrome
Settings>Advanced
Settings>Privacy>Content Settings
Check “Block third-party cookies and
site data.”
Internet Explorer 11
Tools > Internet Options > Privacy >
Advanced
Check “Override automatic cookie
handling, and then choose “Block”
under “Third-party Cookies.”
Removing Third-Party Cookies
By far the easiest way to delete third-party
cookies is to use a free piece of software
called CCleaner. It is a well-known, reputable
program with many other useful features
tuning-up your PC. And best of all, it’s FREE!
 Click Download
 Check “Cookies” for each browser you
use
 Click “Analyze” and review the results
 Then click “Run Cleaner”

7. © 2016 eSOZO Computer & Network Services • www.esozo.com
There is a more persistent cookie variety that is
hard to find and remove: the “zombie cookie.”
In addition to setting typical cookies, it also sets a
“Flash cookie.”
This cookie is stored in the Adobe® Flash directory
rather than your internet browser folder.
Mutant Cookies From
Beyond the Grave?

8. © 2016 eSOZO Computer & Network Services • www.esozo.com
It works like this:
 The third-party sets two standard cookies, plus one Flash
cookie.
 Every time you visit a webpage, the Flash cookie checks
to make sure the standard cookies are present.
 If it doesn’t find them (i.e. if you have deleted the
cookies), it recreates them!
 The outcome of this is a cookie that can’t be deleted; it
keeps returning from “the dead,” again and again.
Mutant Cookies From
Beyond the Grave?
The solution? Identify and delete the Flash cookie as well.

9. © 2016 eSOZO Computer & Network Services • www.esozo.com
To destroy this undead
monster, we turn once
again to CCleaner.
 This time, click Cleaner and
select the Applications tab
 Then check “Adobe Flash
Player” under the Multimedia
section
 Click “Analyze” and “Run
Cleaner” to remove the flash
cookies
How to Destroy an Undead Cookie

10. © 2016 eSOZO Computer & Network Services • www.esozo.com
 Domain (name): The web location that your browser is pointing
to.
 Widget: Tiny apps embedded in a website that performs a simple
function. Examples include Like, Subscribe, and social media
Share buttons.
 Cookie: A tiny text file stored in your browser that remembers
information related to your current and/or past visits.
 First-Party Cookie: A cookie set by the domain you are visiting.
 Third-Party Cookie: A cookie set by a different domain from the
one you’re visiting.
 Zombie Cookie: A cookie that “comes back to life” after you’ve
deleted it.
 Flash Cookie: A much larger cookie that is stored in your Flash
folder. Technically, it’s a Locally Stored Object (LSO).
Glossary

11. © 2016 eSOZO Computer & Network Services • www.esozo.com
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200 Route 31, Suite 202 • Flemington, NJ 08822
888.376.9648 • info@esozo.com • www.esozo.com
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Read the full blog post at http://www.esozo.com/5-ways-that-you-know-its-time-to-outsource-it/.
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