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Cookie is the name given to the technology produced to complete the deficiencies of http, which is a stateless protocol. The cookie developed by Lou Montulli, an employee of Netscape company, laid the foundation of the cookie we will talk about by applying this system, which is used as magic cookie in UNIX systems, to Lou Montulli web pages. These cookies are strings of text and characters that encode the user’s information. Netscape, MS Internet Explorer, GNNWorks, NetCruiser, and OmniWeb are browsers that support cookies. Cookies are stored in the browser directory of computers or in program data subsections.
Requirements for Cookie to work
The cookie can work if it is supported by both the server and the web browser. This is exactly why the Netscape browser was released with cookie support. Because the cookie is a technology that makes the page interactive.
What Does Cookies Do?
The absence of an ID field that identifies the user on the http protocol is kind of an answer to the question of what cookies do. Because Cookie serves to keep the state of the user. In other words, when we log in with a username and password on a website, it is the cookie that brings us the basket and user interface. In this way, the password is not asked for each page and the user’s browser and the server are connected to each other. The cookie, which helps unlock the computer’s memory, can thus:
- It remembers the status of our cart on websites.
- The server remembers information about us.
- It is useful for remembering situations such as user experience and showing ads on related topics.
- It allows you to continue from where you left off on the site.
- It allows the saved login information to be remembered.
- Remembers theme selections and special functions.
- Large websites can thus organize content more quickly.
What are the Cookie Types?
Session cookie: These are cookies that are temporary and are automatically deleted when the browser is closed. No questions are asked to the user whether or not to be caught. Therefore, session cookies have become a necessity in the current web world.
Permanent cookie: These are the cookies that the browser asks us if we want this connection to be remembered when we enter a site, and if we want, the browser keeps it permanently and informs the opposite server. Through this type of cookie, even if we close the browser and open it again, we can access the relevant site without entering a username and password.
Disadvantages of Cookies
It is not safe to store and transmit sensitive information in these cookies, which act as a reminder, because these cookies are insecure. Because the cookie is in a structure that is stored as readable and imitative clear text.
It makes you feel like you are being watched.
For those who don’t know, finding and deleting cookies can be difficult.
Some viruses can be disguised as cookies.
What are the Risks of Using Cookies?
First-party cookies created by the website you clicked on are persistent cookies that save your site navigation, login information, and preferences. They are generally considered risk-free.
Third-party cookies created by a site or advertisement are cookies that have the ability to track and record your activities for a long time, even if you leave the website. Although they do not create a risky situation, it is necessary to be cautious.
Third-party cookies, known as zombie cookies, are very difficult to destroy. That’s why they are so insecure.
How are Cookies Managed?
Blocking permanent cookies is an option for you. In this way, you also prevent the storage of new ones. With browsers that allow you to enable and disable third-party cookies, you can allow first-party cookies or even disable activation at any time.
How Do Cookies Affect User Privacy? How is it used under the Personal Data Protection Law (KVKK)?
Cookies are not preferred by some users because they store your information. That’s why it’s important to have a legal arrangement for them. The EU has privacy laws such as the ePrivacy Directive. And they manage the use of cookies. In the EU General Data Protection Regulation (GDPR), cookies are considered personal data, and all personal data collected by cookies fall under the jurisdiction of GDPR.
Although there is no regulation regarding the use of cookies in our case, the Personal Data Protection Law (KVKK) No. 6698 applies to all data controllers who process personal data because of the use of cookies.
