Carla Ollé Vera and Aida Pooladian - Cookies and privacy: What do they do with our personal...
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Transcript of Carla Ollé Vera and Aida Pooladian - Cookies and privacy: What do they do with our personal...
COOKIES AND PRIVACY:What do they do with our personal information?
Carla Ollé & Aida Pouladian
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1. What are Cookies? - Description
• Pieces of information provided by the users, as well as other data obtained from the browser
• Legitimate files that are installed on the user’s computers
• Small amounts of data that are send between server and browser
Cookies are:
2. Cookie’s purposes
• Simplify navigation• Improve user experience• Save time filling forms automatically, remembering
passwords and searches.• Carry out web analytics studies (statics, number of
visits…) to optimize the web• Adapt the content to every user profile (What they
are looking for?)• Make the user’s visit as personalized as possible• Understand better the audience
Cookies helps to:
3. What Cookies do?
What they do to achive their purposes?
Cookies track the user’s navigation keeping information to know about:
• Behaviour• Habits• Preferences: language, bookmarks…• Geolocalization: country, IP, …• Activity history and types of visits
4. Kind of CookiesTypes Names Behaviour Uses
Technical Cookies /
Own Cookies
Analysis Cookies
Temporary cookies. Are not stored and disappear
when the session ends.Analyze web traffic patterns
and audience analytics
Session cookies
Allow navigation and interaction with web pages
and users
Register, fill the shopping cart in an online shop,
identify the session
Third-party Cookies
Persistent cookies
Stored in the user's device and allow to retrieve
navigation information. You can delete them
Customize the sites through the user’s preferences
Personalized advertising
Zombie cookies
(Flash Cookies
Evercookies)
They recreated themselves after they are erased and are
stored in the device
It is a threat to user privacy. Retrieve information such as previous unique user ID and continue tracking personal
browsing habits.
5. Are cookies affect our privacy?Cookies can pose risks to privacy because they analyze the user browsing habits
6. Examples of persistent cookies
The purchase of a flightEncrypted information: IP, flight dates, nº passengers… Why? prevent spyware attacks or cookie theft
Persistent cookie: the date expires in 2021! Why? Saves preferences information for future connections:- Travel destination- Estimated prices- Interest on certain dates
Session cookies: allow to identify the session and fill the “shopping cart”
6. How we can protect ourselves?
We have three options:
THANKS FOR YOUR ATTENTION