What are cookies?
If you’ve ever read a newspaper article about the internet, it’s likely that someone, somewhere will have mentioned ‘cookies’. They may have been explained as an evil and intrusive spying mechanism tracking your every move on the net - or a harmless device designed to make your life easier. This guide should clear up any confusion and ease any concerns.
First, and contrary to popular belief, cookies are NOT programs. They don’t do anything at all. They are simple ’text files’ which you can read using the Notebook program on your own PC. Typically, they contain two pieces of information: a site name and unique user ID.
How do they work?
The site then ’knows’ that you have been there before, and in some cases, tailors what pops up on screen to take account of that fact. For instance, it can be helpful to vary content according to whether this is your first ever visit to a site – or your 71st.
The good thing about cookies…
Some cookies are more sophisticated. They might record how long you spend on each page on a site, what links you click, even your preferences for page layouts and colour schemes. They can also be used to store data on what is in your ‘shopping cart’, adding items as you click.
The possibilities are endless, and generally the role of cookies is beneficial, making your interaction with frequently-visited sites smoother - for no extra effort on your part. Without cookies, online shopping would be much harder.
…and the bad
So why the paranoia? The answer probably depends on how you feel about organisations – both big business and government – storing information about you. There is nothing especially secret or exceptional about the information gathered by cookies, but you may just dislike the idea of your name being added to marketing lists, or your information being used to target you for special offers. That is your right, just as others are entitled to go along with the process.
When cookies first started to appear, there was controversy. Some people regarded them as inherently sneaky - your PC was being used (without warning) to store personal information about you, which could then be used to build a picture of your browsing habits.
Cookies and the law
You can of course still change how cookies are stored on your machine by clicking on the 'Tools' menu in your internet browser, but you may find that the new law means your concerns about privacy and your personal data have been addressed.
Source: BBC WebWise Team | 10th October 2012
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