privacy_protection
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privacy_protection [2023/07/19 06:08] – [Privacy protection] hc9 | privacy_protection [2024/09/16 06:42] (current) – ee” hc9 | ||
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====== Privacy protection ====== | ====== Privacy protection ====== | ||
- | Have you ever wondered why so many web sites offer various services for "free"? Consider social networks. They let you stay in touch with friends, share photos, chat, recommend stuff, etc. Even if you are not involved in a social network, you are probably using one of those cool services around there such as a web feedreader, photo albums, online documents, and so on. | + | Have you ever wondered why so many web sites offer various services for “free”? Consider social networks. They let you stay in touch with friends, share photos, chat, recommend stuff, etc. Even if you are not involved in a social network, you are probably using one of those cool services around there such as a web feedreader, photo albums, online documents, and so on. |
- | Are they giving you "free" | + | Are they giving you “free” services? This depends on your definition of “free”. Using them doesn' |
Too much paranoia? Maybe. However, let's try a test. Visit the link below (it will redirect to doubleclick.net; | Too much paranoia? Maybe. However, let's try a test. Visit the link below (it will redirect to doubleclick.net; | ||
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http:// | http:// | ||
- | It probably guessed your demographic information and/or interests. How do they know? They track your internet usage by means of an "HTTP cookie", which is a small file that some websites leave on your computer when you visit them. While it is not a big issue //per se// (they can be used to, for example, save your preferences for a website), they can also be used to collect information about you, as shown above. | + | It probably guessed your demographic information and/or interests. How do they know? They track your internet usage by means of an “HTTP cookie”, which is a small file that some websites leave on your computer when you visit them. While it is not a big issue //per se// (they can be used to, for example, save your preferences for a website), they can also be used to collect information about you, as shown above. |
A cool and informative visualization of the tracking process can be seen here: http:// | A cool and informative visualization of the tracking process can be seen here: http:// | ||
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* Like standard cookies, but done with Adobe Flash. Check the [[http:// | * Like standard cookies, but done with Adobe Flash. Check the [[http:// | ||
* Zombie cookies | * Zombie cookies | ||
- | * Yet another cookie type. This one's particular, though. It will be recreated even if the user has deleted it. Actually, it's not just a single cookie, like the HTTP or flash types. Other storage mechanisms will additionally be used (e.g., | + | * Yet another cookie type. This one's particular, though. It will be recreated even if the user has deleted it. Actually, it's not just a single cookie, like the HTTP or flash types. Other storage mechanisms will additionally be used (e.g., |
* Web bugs | * Web bugs | ||
* A small or invisible object (like a 1x1 pixel image) is put into a web site or e-mail message which is loaded from a third party. Read the [[http:// | * A small or invisible object (like a 1x1 pixel image) is put into a web site or e-mail message which is loaded from a third party. Read the [[http:// |
privacy_protection.1689746924.txt · Last modified: 2023/07/19 06:08 by hc9