mech-eng said:
This is also very confusing. As I mentioned in my previous posts in this thread, I opened a thread and this tool, Google Analytics determined or instantly had this info and since the question is about privacy, probably from the IP adress they sent me their privacy agreement? This is too fast and very strange? Might it be an artificial intelligence? I heard they were very fast for operations in exchange market.
Thank you.
It has nothing to do with artificial intelligence or special tools that could guess your social security number or something like that.
It has to do with YOU. What information YOU are deliberately sending to others. What information YOU are allowing to be saved and recuperated on your computer.
Some of this information, you have to give it up, like your IP address. When you ask for a web page, you have to give it up such that the server knows where to send the web page in question. It's like if you order pizza from a restaurant, you have to give them your physical address if you want it to be delivered to your house.
Some of it is automatically sent by your browser to inform the server what type of browser it is dealing with, such that it can give an appropriate response. Technically, you don't need to send those infos, but it might be difficult (impossible?) to stop popular browsers from doing it on your behalf. It is up to YOU to use a browser where you can control what is sent.
Some of it is recorded on your computer because YOU allowed it to be recorded on your computer. If YOU allow websites using javascript on your computer, YOU open the door for websites that YOU communicate with to run programs that they designed. There are a lot of security features with javascript, but there are a lot of smart programmers too. YOU can turn javascript off (i.e disallow websites to use it). YOU can decline cookies or local storage (used by websites to store data on your machine). But maybe your browser will make this really difficult to achieve. It is still up to YOU to use a browser where you can control what it allows websites to do on your computer.
If you turn everything off, you might find your experience on the web not as interesting, though. The thing is that those infos are meant to be use to enhance your experience; and most websites do use the info in that sense. The rest is mostly using it to do marketing research (like what do people buy, where do they go, etc.). In a privacy agreement, the website is declaring what it actually does with the info YOU sent them and what they store on your computer, if YOU allow them to do it.
If someone wants to follow a particular person (like the police looking for a criminal on the run), one could technically use some of these techniques to do so. But you must be a person of interest for someone for this to happen. Are you that interesting? Most people aren't.
To catch a glimpse at what infos YOU are sending to every website you visit, you can take a look at
https://panopticlick.eff.org/.