Cookies- A Small Tracker Explained

Browser Cookies explained
Cookies are the small text files that is used to track a web user. Tracking is may be used for  user authentication, identification, preferences etc. So that, it reduces internet complexity. That is, entering passwords and user-names on every page is difficult for a user.

Some websites uses this cookies to track users browser activities, to give them needed results. One of my friend asked to me that "Is cookies can infect a computer ?". The answer is - obviously NOT. Because, they cannot carry viruses.

Types of cookies

Session Cookies

Session cookie is being used to track a specific website user. It doesn't contains expiring time, so it lasts forever. But normally it automatically deleted by web browser when you quits the website.

Secure Cookies

It may be a session cookie that was encrypted. When you visit some websites with HTTPS, it will  be created on your web-browser. This encrypted cookies assures the user's security.

Persistent Cookies

It is the cookie that having limited user session, maximum up to 1 year. Every time the user visits the particular website, initial value set in the cookie will be sent back to the website. So, it can track a user successfully.

Third-Party Cookies

It is the cookies that mainly used by the advertisers. Websites may contain advertisements, these advertisements sets a cookie on the web browsers to track users.

Zombie Cookies

It is the cookie that recreates automatically from backup stores(eg: flash local storage), when it's absence detected.

Http Only Cookie

It is the session cookie that created, when we access a website via HTTP. Hackers can steal user's cookie to gain access to a web account(Session Hijacking).

Super Cookies

Super cookie is a cookie that is stored in different locations of computer and  having larger size than a normal cookie. It is mainly a flash based cookie. It is difficult to delete (because it is harder to find in your PC). It can track a user completely.

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