Restoring Privacy, Cleaning Your Computer's Cookies and Beacons - PowerPoint PPT Presentation

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Restoring Privacy, Cleaning Your Computer's Cookies and Beacons

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Third Party Cookies Cookies with a different domain than the site you are visiting. Quite often used in advertising to track the websites you visit. – PowerPoint PPT presentation

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Title: Restoring Privacy, Cleaning Your Computer's Cookies and Beacons


1
Restoring Privacy, Cleaning Your Computer's
Cookies and Beacons
2
Photo by KayVee.INC
3
Cookies Historical
  • Cookies Browsers have allowed websites to store
    small amounts of information on the computer.
  • Number of visits
  • Preferences
  • Login

4
Beacons/Bugs Historical
  • 1x1 pixel transparent image
  • Track customers across a web site
  • Spammers use to determine valid emails

5
What is tracked?
  • IP address general vicinity of your location
  • Time you accessed the page / email
  • Computer type and operating system
  • The browser you used
  • Any previous information stored in cookies they
    stored

6
Turning Cookies Off
  • Browsers allow you to turn cookies off. However,
    there is a downside
  • Many times the functionality of the website
    fails. For example, you may not be able to login
    to the site, or preferences are lost, shopping
    carts dont work.

7
Third Party Cookies
  • Cookies with a different domain than the site you
    are visiting.
  • Quite often used in advertising to track the
    websites you visit.

8
Clearing Cookies
  • Browsers typical allow you to clear the data
    stored in normal cookies.
  • When the cookie expires
  • When you close the browser
  • Ask before clearing

9
Flash Cookies
  • Local shared objects (LSO)
  • Latest versions of Flash do not allow 3rd party
    sharing.
  • Much larger data storage
  • Little public awareness of LSOs
  • Browsers are unaware of LSOs

10
New Information Collected
  • Assess what you are doing on a web
  • Determine your location
  • Estimate your income
  • Determine shopping interests
  • Assess medical conditions

11
New Market
  • Your profiles is built as you browse the web.
  • Companies buy and sell your profile to target
    their specific ads to certain types of
    individuals.

12
Google Ad/Preference Video
13
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14
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17
iPhone / iPad 3G
  • Track location (lat/lon) with time stamp and
    stored on iPhone or iPad -- Encrypt

18
Review ebays cookie policy
  • Take a look at how ebay uses cookies and beacons
    http//pages.ebay.com/help/account/cookies-web-bea
    cons.html

19
Discussion
  • Is it of concern that advertisers are tracking
    you?

20
Opting Out
http//www.google.com/ads/preferences/ http//pr
ivacy.yahoo.com/aim
Companies including Yahoo, Microsoft, Google and
AOL will be adding links to their European ads
that will allow web surfers to opt out of
tracking.
21
Enhancing Privacy through Software
WOT FF, Safari, IE, Chrome, Opera
Better Privacy Firefox
McAfee Site Advisor Firefox
Addblock Plus Firefox, Chrome
Abine Privacy Suite Firefox, IE soon
Firefox, Safari, Chrome, IE
22
Tips for Safe Browsing
  • Use antivirus software
  • Keep browser updated
  • Update Adobe software Flash, PDF readers
  • Avoid clicking on malicious ads
  • Only accept friend requests from those you know.

23
Removing Flash Cookies
  • Global Storage Settings Panel http//www.macromedi
    a.com/support/documentation/en/flashplayer/help/se
    ttings_manager.html
  • Flash announced in January they will provide a
    means for browsers to remove flash cookies.
  • So far Chrome has adopted

24
Email Disclaimer
  • This message is the property of Time Inc. or its
    affiliates. It may be legally privileged and/or
    confidential and is intended only for the use of
    the addressee(s). No addressee should forward,
    print, copy, or otherwise reproduce this message
    in any manner that would allow it to be viewed by
    any individual not originally listed as a
    recipient. If the reader of this message is not
    the intended recipient, you are hereby notified
    that any unauthorized disclosure, dissemination,
    distribution, copying or the taking of any action
    in reliance on the information herein is strictly
    prohibited. If you have received this
    communication in error, please immediately notify
    the sender and delete this message.

25
Going Further
  • WSJ article http//online.wsj.com/article/SB10001
    424052748703940904575395073512989404.html

26
Add Ghostery/WOT to Your Browser
  • www.ghostery.com/download
  • www.mywot.com/download
  • Configure Ghostery
  • Surf some sites and see who is tracking you
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